Honda NSX NA1 1991-2005 (C30A) → MoTeC M190 13190 (auto)

Honda NSX NA1 1991-2005 (C30A) — MoTeC — M190

⚠ NOT CHECKED. Don't build from this.

Drawn by Michael Gnankou · Rev 0 · draft · 2026-10-08

Before you start

Status	draft · not yet verified: nobody has reported building and running this harness
Open errors	none
Size of the job	83 wires · 12 connectors · 0 part lines
Tools	Crimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink
Order of work	1. Check every part against the parts list. 2. Cut and label every wire (labels: Export → Wire labels). 3. Crimp and pin connector by connector, ticking the build checklist. 4. Run the bench test with nothing plugged in and the battery disconnected. 5. Only then connect the ECU and power up.

Build checklist

Tick each box as you go. Continuity: meter from end to end, expect under 1 Ω.

Wire	From	To	Gauge	Cut	Label	Crimp A	Crimp B	Pin A	Pin B	Continuity
W1	OEM-A-25	SP-14V-1	0.85	☐	☐	☐	☐	☐	☐	☐
W2	OEM-C-1	SP-14V-1	0.85	☐	☐	☐	☐	☐	☐	☐
W3	SP-14V-1	M190-B-H	0.85	☐	☐	☐	☐	☐	☐	☐
W4	SP-14V-1	M190-B-J	0.85	☐	☐	☐	☐	☐	☐	☐
W5	SP-14V-1	M190-B-K	0.85	☐	☐	☐	☐	☐	☐	☐
W6	SP-14V-1	M190-B-L	0.85	☐	☐	☐	☐	☐	☐	☐
W7	OEM-D-1	M190-A-38	0.85	☐	☐	☐	☐	☐	☐	☐
W8	OEM-A-23	SP-GND-1	0.85	☐	☐	☐	☐	☐	☐	☐
W9	OEM-A-24	SP-GND-1	0.85	☐	☐	☐	☐	☐	☐	☐
W10	OEM-B-2	SP-GND-1	0.85	☐	☐	☐	☐	☐	☐	☐
W11	SP-GND-1	M190-B-G	0.85	☐	☐	☐	☐	☐	☐	☐
W12	SP-GND-1	M190-B-W	0.85	☐	☐	☐	☐	☐	☐	☐
W13	SP-GND-1	M190-B-X	0.85	☐	☐	☐	☐	☐	☐	☐
W14	SP-GND-1	M190-B-Y	0.85	☐	☐	☐	☐	☐	☐	☐
W15	SP-GND-1	M190-B-Z	0.85	☐	☐	☐	☐	☐	☐	☐
W16	SP-GND-1	M190-B-c	0.85	☐	☐	☐	☐	☐	☐	☐
W17	OEM-A-26	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W18	OEM-B-10	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W19	OEM-B-12	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W20	OEM-B-14	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W21	OEM-B-16	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W22	OEM-D-21	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W23	OEM-D-22	SP-0V-1	0.5	☐	☐	☐	☐	☐	☐	☐
W24	SP-0V-1	M190-A-18	0.5	☐	☐	☐	☐	☐	☐	☐
W25	SP-0V-1	M190-A-19	0.5	☐	☐	☐	☐	☐	☐	☐
W26	SP-0V-1	M190-A-20	0.5	☐	☐	☐	☐	☐	☐	☐
W27	SP-0V-1	M190-C-14	0.5	☐	☐	☐	☐	☐	☐	☐
W28	SP-0V-1	M190-C-15	0.5	☐	☐	☐	☐	☐	☐	☐
W29	SP-0V-1	M190-C-23	0.5	☐	☐	☐	☐	☐	☐	☐
W30	SP-0V-1	M190-C-30	0.5	☐	☐	☐	☐	☐	☐	☐
W31	OEM-D-18	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W32	OEM-D-19	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W33	OEM-D-20	SP-5V1-1	0.5	☐	☐	☐	☐	☐	☐	☐
W34	SP-5V1-1	M190-A-16	0.5	☐	☐	☐	☐	☐	☐	☐
W35	OEM-B-15	M190-C-18	0.5	☐	☐	☐	☐	☐	☐	☐
W36	OEM-B-13	M190-C-32	0.5	☐	☐	☐	☐	☐	☐	☐
W37	OEM-B-11	M190-C-25	0.5	☐	☐	☐	☐	☐	☐	☐
W38	OEM-B-9	M190-C-27	0.5	☐	☐	☐	☐	☐	☐	☐
W39	OEM-D-4	M190-C-51	0.5	☐	☐	☐	☐	☐	☐	☐
W40	OEM-D-3	M190-C-44	0.5	☐	☐	☐	☐	☐	☐	☐
W41	OEM-A-21	M190-C-16	0.5	☐	☐	☐	☐	☐	☐	☐
W42	OEM-A-22	M190-C-8	0.5	☐	☐	☐	☐	☐	☐	☐
W43	OEM-B-8	M190-C-2	0.5	☐	☐	☐	☐	☐	☐	☐
W44	OEM-B-6	M190-C-1	0.5	☐	☐	☐	☐	☐	☐	☐
W45	OEM-B-4	M190-C-5	0.5	☐	☐	☐	☐	☐	☐	☐
W46	OEM-B-3	M190-C-4	0.5	☐	☐	☐	☐	☐	☐	☐
W47	OEM-A-1	M190-A-11	0.5	☐	☐	☐	☐	☐	☐	☐
W48	OEM-A-3	M190-A-3	0.5	☐	☐	☐	☐	☐	☐	☐
W49	OEM-A-5	M190-B-U	0.5	☐	☐	☐	☐	☐	☐	☐
W50	OEM-A-2	M190-A-12	0.5	☐	☐	☐	☐	☐	☐	☐
W51	OEM-A-4	M190-A-2	0.5	☐	☐	☐	☐	☐	☐	☐
W52	OEM-A-6	M190-B-V	0.5	☐	☐	☐	☐	☐	☐	☐
W53	OEM-A-8	M190-A-1	0.5	☐	☐	☐	☐	☐	☐	☐
W54	OEM-A-15	M190-B-b	0.5	☐	☐	☐	☐	☐	☐	☐
W55	OEM-A-18	M190-A-5	0.5	☐	☐	☐	☐	☐	☐	☐
W56	OEM-A-7	M190-B-S	0.5	☐	☐	☐	☐	☐	☐	☐
W57	OEM-5-F5	M190-B-A	0.5	☐	☐	☐	☐	☐	☐	☐
W58	OEM-5-F7	M190-B-B	0.5	☐	☐	☐	☐	☐	☐	☐
W59	OEM-A-10	M190-B-C	0.5	☐	☐	☐	☐	☐	☐	☐
W60	OEM-A-12	M190-B-D	0.5	☐	☐	☐	☐	☐	☐	☐
W61	OEM-A-11	M190-A-48	0.5	☐	☐	☐	☐	☐	☐	☐
W62	OEM-A-13	M190-B-a	0.5	☐	☐	☐	☐	☐	☐	☐
W63	OEM-A-14	M190-A-40	0.5	☐	☐	☐	☐	☐	☐	☐
W64	OEM-A-20	M190-B-T	0.5	☐	☐	☐	☐	☐	☐	☐
W65	OEM-A-9	M190-A-25	0.5	☐	☐	☐	☐	☐	☐	☐
W66	OEM-D-17	M190-C-42	0.5	☐	☐	☐	☐	☐	☐	☐
W67	OEM-D-11	M190-C-36	0.5	☐	☐	☐	☐	☐	☐	☐
W68	OEM-D-14	M190-A-7	0.5	☐	☐	☐	☐	☐	☐	☐
W69	OEM-D-16	M190-A-6	0.5	☐	☐	☐	☐	☐	☐	☐
W70	OEM-D-13	M190-C-37	0.5	☐	☐	☐	☐	☐	☐	☐
W71	OEM-D-15	M190-C-39	0.5	☐	☐	☐	☐	☐	☐	☐
W72	OEM-D-12	M190-C-35	0.5	☐	☐	☐	☐	☐	☐	☐
W73	OEM-C-2	M190-C-40	0.5	☐	☐	☐	☐	☐	☐	☐
W74	OEM-D-9	M190-C-47	0.5	☐	☐	☐	☐	☐	☐	☐
W75	OEM-5-F2	M190-A-21	0.5	☐	☐	☐	☐	☐	☐	☐
W76	OEM-5-F4	M190-A-14	0.5	☐	☐	☐	☐	☐	☐	☐
W77	OEM-B-7	M190-A-30	0.5	☐	☐	☐	☐	☐	☐	☐
W78	OEM-C-11	M190-A-37	0.5	☐	☐	☐	☐	☐	☐	☐
W79	OEM-C-3	M190-C-17	0.5	☐	☐	☐	☐	☐	☐	☐
W80	OEM-C-5	M190-C-10	0.5	☐	☐	☐	☐	☐	☐	☐
W81	OEM-C-7	M190-C-22	0.5	☐	☐	☐	☐	☐	☐	☐
W82	OEM-C-9	M190-C-21	0.5	☐	☐	☐	☐	☐	☐	☐
W83	OEM-D-8	M190-C-20	0.5	☐	☐	☐	☐	☐	☐	☐

Bench test (before first power-up)

Battery disconnected, ECU and every sensor unplugged. Meter on resistance. Each pair below must read open (OL): a reading means a pinched wire, a stray strand or a mis-pinned cavity. Then check continuity of every wire (last column of the build checklist).

#	Probe A	Probe B	Expect	Why
1	M190-B-H	M190-A-18	open (OL)	+12 V supply must not touch sensor ground
2	M190-A-18	M190-A-16	open (OL)	sensor ground must not touch 5 V sensor reference
3	M190-A-18	M190-A-38	open (OL)	sensor ground must not touch +12 V supply
4	M190-A-38	M190-A-16	open (OL)	+12 V supply must not touch 5 V sensor reference
5	M190-B-G	M190-A-16	open (OL)	power ground must not touch 5 V sensor reference
6	M190-B-G	M190-A-38	open (OL)	power ground must not touch +12 V supply
7	M190-B-G	M190-B-H	open (OL)	power ground must not touch +12 V supply
8	M190-B-H	M190-A-16	open (OL)	+12 V supply must not touch 5 V sensor reference

Revisions

Rev	Label	By	Date
No revisions yet.

Schematic

Connectors

M190-A

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	Low Side Injector 3	—	W53	—	0.5	OEM-A-8	—	—	—
10	Low Side Injector 8	—	—	—	—	—	—	—	—
11	Peak Hold Injector 1	—	W47	—	0.5	OEM-A-1	—	—	—
12	Peak Hold Injector 2	—	W50	—	0.5	OEM-A-2	—	—	—
13	Analogue Voltage Input 11	—	—	—	—	—	—	—	—
14	Digital Input 2	—	W76	—	0.5	OEM-5-F4	—	—	—
15	RS232 Receive	—	—	—	—	—	—	—	—
16	Sensor 5.0V C3	—	W34	—	0.5	SP-5V1-1	—	—	—
17	Low Side Injector 11	—	—	—	—	—	—	—	—
18	Sensor 0V C1	—	W24	—	0.5	SP-0V-1	—	—	—
19	Sensor 0V C2	—	W25	—	0.5	SP-0V-1	—	—	—
2	Low Side Injector 2	—	W51	—	0.5	OEM-A-4	—	—	—
20	Sensor 0V C3	—	W26	—	0.5	SP-0V-1	—	—	—
21	Digital Input 1	—	W75	—	0.5	OEM-5-F2	—	—	—
22	LIN Bus	—	—	—	—	—	—	—	—
23	RS232 Transmit	—	—	—	—	—	—	—	—
24	CAN Bus 2 High	—	—	—	—	—	—	—	—
25	Low Side Injector 7	—	W65	—	0.5	OEM-A-9	—	—	—
26	Peak Hold Injector 3	—	—	—	—	—	—	—	—
27	Analogue Voltage Input 15	—	—	—	—	—	—	—	—
28	Analogue Voltage Input 16	—	—	—	—	—	—	—	—
29	Analogue Voltage Input 17	—	—	—	—	—	—	—	—
3	Low Side Injector 1	—	W48	—	0.5	OEM-A-3	—	—	—
30	Digital Input 3	—	W77	—	0.5	OEM-B-7	—	—	—
31	CAN Bus 2 Low	—	—	—	—	—	—	—	—
32	Low Side Injector 10	—	—	—	—	—	—	—	—
33	Peak Hold Injector 4	—	—	—	—	—	—	—	—
34	Analogue Voltage Input 13	—	—	—	—	—	—	—	—
35	Analogue Voltage Input 12	—	—	—	—	—	—	—	—
36	Peak Hold Injector 7	—	—	—	—	—	—	—	—
37	Digital Input 4	—	W78	—	0.5	OEM-C-11	—	—	—
38	Battery Backup	—	W7	—	0.85	OEM-D-1	—	—	—
39	CAN Bus 3 High	—	—	—	—	—	—	—	—
4	Low Side Injector 12	—	—	—	—	—	—	—	—
40	Low Side Injector 6	—	W63	—	0.5	OEM-A-14	—	—	—
41	Analogue Voltage Input 14	—	—	—	—	—	—	—	—
42	Peak Hold Injector 9	—	—	—	—	—	—	—	—
43	Peak Hold Injector 10	—	—	—	—	—	—	—	—
44	Peak Hold Injector 6	—	—	—	—	—	—	—	—
45	Peak Hold Injector 5	—	—	—	—	—	—	—	—
46	CAN Bus 3 Low	—	—	—	—	—	—	—	—
47	Low Side Injector 9	—	—	—	—	—	—	—	—
48	Low Side Injector 5	—	W61	—	0.5	OEM-A-11	—	—	—
49	Peak Hold Injector 11	—	—	—	—	—	—	—	—
5	Low Side Injector 4	—	W55	—	0.5	OEM-A-18	—	—	—
50	Peak Hold Injector 12	—	—	—	—	—	—	—	—
51	Peak Hold Injector 8	—	—	—	—	—	—	—	—
52	Low Side Ignition 12	—	—	—	—	—	—	—	—
53	Low Side Ignition 9	—	—	—	—	—	—	—	—
54	Low Side Ignition 10	—	—	—	—	—	—	—	—
55	Low Side Ignition 11	—	—	—	—	—	—	—	—
6	Lambda Narrow Input 2	—	W69	—	0.5	OEM-D-16	—	—	—
7	Lambda Narrow Input 1	—	W68	—	0.5	OEM-D-14	—	—	—
8	Sensor 5.0V C1	—	—	—	—	—	—	—	—
9	Sensor 5.0V C2	—	—	—	—	—	—	—	—

M190-B

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
A	Half Bridge Output 1	—	W57	—	0.5	OEM-5-F5	—	—	—
B	Half Bridge Output 2	—	W58	—	0.5	OEM-5-F7	—	—	—
C	Half Bridge Output 3	—	W59	—	0.5	OEM-A-10	—	—	—
D	Half Bridge Output 4	—	W60	—	0.5	OEM-A-12	—	—	—
E	Half Bridge Output 5	—	—	—	—	—	—	—	—
F	Half Bridge Output 6	—	—	—	—	—	—	—	—
G	Battery Negative 1	—	W11	—	0.85	SP-GND-1	—	—	—
H	Battery Positive 1	—	W3	—	0.85	SP-14V-1	—	—	—
J	Battery Positive 2	—	W4	—	0.85	SP-14V-1	—	—	—
K	Battery Positive 3	—	W5	—	0.85	SP-14V-1	—	—	—
L	Battery Positive 4	—	W6	—	0.85	SP-14V-1	—	—	—
M	Half Bridge Output 10	—	—	—	—	—	—	—	—
N	Half Bridge Output 9	—	—	—	—	—	—	—	—
P	Half Bridge Output 8	—	—	—	—	—	—	—	—
R	Half Bridge Output 7	—	—	—	—	—	—	—	—
S	Low Side Injector 4	—	W56	—	0.5	OEM-A-7	—	—	—
T	Low Side Injector 6	—	W64	—	0.5	OEM-A-20	—	—	—
U	Low Side Injector 1	—	W49	—	0.5	OEM-A-5	—	—	—
V	Low Side Injector 2	—	W52	—	0.5	OEM-A-6	—	—	—
W	Battery Negative 2	—	W12	—	0.85	SP-GND-1	—	—	—
X	Battery Negative 3	—	W13	—	0.85	SP-GND-1	—	—	—
Y	Battery Negative 4	—	W14	—	0.85	SP-GND-1	—	—	—
Z	Battery Negative 5	—	W15	—	0.85	SP-GND-1	—	—	—
a	Low Side Injector 5	—	W62	—	0.5	OEM-A-13	—	—	—
b	Low Side Injector 3	—	W54	—	0.5	OEM-A-15	—	—	—
c	Battery Negative 6	—	W16	—	0.85	SP-GND-1	—	—	—

M190-C

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	Low Side Ignition 4	—	W44	—	0.5	OEM-B-6	—	—	—
10	Universal Digital Input 8	—	W80	—	0.5	OEM-C-5	—	—	—
11	Analogue Voltage Input 6	—	—	—	—	—	—	—	—
12	Analogue Voltage Input 7	—	—	—	—	—	—	—	—
13	Analogue Voltage Input 9	—	—	—	—	—	—	—	—
14	Sensor 0V A1	—	W27	—	0.5	SP-0V-1	—	—	—
15	Sensor 0V A2	—	W28	—	0.5	SP-0V-1	—	—	—
16	Low Side Ignition 1	—	W41	—	0.5	OEM-A-21	—	—	—
17	Universal Digital Input 7	—	W79	—	0.5	OEM-C-3	—	—	—
18	Universal Digital Input 1	—	W35	—	0.5	OEM-B-15	—	—	—
19	Universal Digital Input 12	—	—	—	—	—	—	—	—
2	Low Side Ignition 3	—	W43	—	0.5	OEM-B-8	—	—	—
20	Universal Digital Input 11	—	W83	—	0.5	OEM-D-8	—	—	—
21	Universal Digital Input 10	—	W82	—	0.5	OEM-C-9	—	—	—
22	Universal Digital Input 9	—	W81	—	0.5	OEM-C-7	—	—	—
23	Sensor 0V B1	—	W29	—	0.5	SP-0V-1	—	—	—
24	CAN Bus 1 High	—	—	—	—	—	—	—	—
25	Universal Digital Input 3	—	W37	—	0.5	OEM-B-11	—	—	—
26	Ethernet Receive -	—	—	—	—	—	—	—	—
27	Universal Digital Input 4	—	W38	—	0.5	OEM-B-9	—	—	—
28	Analogue Voltage Input 4	—	—	—	—	—	—	—	—
29	Analogue Voltage Input 5	—	—	—	—	—	—	—	—
3	Low Side Ignition 8	—	—	—	—	—	—	—	—
30	Sensor 0V B2	—	W30	—	0.5	SP-0V-1	—	—	—
31	CAN Bus 1 Low	—	—	—	—	—	—	—	—
32	Universal Digital Input 2	—	W36	—	0.5	OEM-B-13	—	—	—
33	Ethernet Receive +	—	—	—	—	—	—	—	—
34	Ethernet Transmit -	—	—	—	—	—	—	—	—
35	Analogue Voltage Input 3	—	W72	—	0.5	OEM-D-12	—	—	—
36	Analogue Voltage Input 2	—	W67	—	0.5	OEM-D-11	—	—	—
37	Analogue Temperature Input 1	—	W70	—	0.5	OEM-D-13	—	—	—
38	Analogue Temperature Input 3	—	—	—	—	—	—	—	—
39	Analogue Temperature Input 2	—	W71	—	0.5	OEM-D-15	—	—	—
4	Low Side Ignition 6	—	W46	—	0.5	OEM-B-3	—	—	—
40	Universal Digital Input 5	—	W73	—	0.5	OEM-C-2	—	—	—
41	Ethernet Transmit +	—	—	—	—	—	—	—	—
42	Analogue Voltage Input 1	—	W66	—	0.5	OEM-D-17	—	—	—
43	Knock Input 3	—	—	—	—	—	—	—	—
44	Knock Input 2	—	W40	—	0.5	OEM-D-3	—	—	—
45	Analogue Temperature Input 5	—	—	—	—	—	—	—	—
46	Analogue Temperature Input 4	—	—	—	—	—	—	—	—
47	Universal Digital Input 6	—	W74	—	0.5	OEM-D-9	—	—	—
48	Sensor 5.0V A1	—	—	—	—	—	—	—	—
49	Knock Input 4	—	—	—	—	—	—	—	—
5	Low Side Ignition 5	—	W45	—	0.5	OEM-B-4	—	—	—
50	Sensor 5.0V B1	—	—	—	—	—	—	—	—
51	Knock Input 1	—	W39	—	0.5	OEM-D-4	—	—	—
52	Analogue Temperature Input 6	—	—	—	—	—	—	—	—
53	Sensor 5.0V A2	—	—	—	—	—	—	—	—
54	Sensor 6.3V	—	—	—	—	—	—	—	—
55	Sensor 5.0V B2	—	—	—	—	—	—	—	—
6	Analogue Voltage Input 8	—	—	—	—	—	—	—	—
7	Analogue Voltage Input 10	—	—	—	—	—	—	—	—
8	Low Side Ignition 2	—	W42	—	0.5	OEM-A-22	—	—	—
9	Low Side Ignition 7	—	—	—	—	—	—	—	—

OEM-5

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
F2	Front VTEC pressure switch	—	W75	—	0.5	M190-A-21	—	—	—
F4	Rear VTEC pressure switch	—	W76	—	0.5	M190-A-14	—	—	—
F5	Front VTEC solenoid valve	—	W57	—	0.5	M190-B-A	—	—	—
F7	Rear VTEC solenoid valve	—	W58	—	0.5	M190-B-B	—	—	—

OEM-A

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	Injector 1	—	W47	—	0.5	M190-A-11	—	—	—
10	Front O2 sensor heater (HTCNTF)	—	W59	—	0.5	M190-B-C	—	—	—
11	EGR control solenoid	—	W61	—	0.5	M190-A-48	—	—	—
12	Rear O2 sensor heater (HTCNTR)	—	W60	—	0.5	M190-B-D	—	—	—
13	Check engine light (WARN)	—	W62	—	0.5	M190-B-a	—	—	—
14	Chamber volume control solenoid (BPS)	—	W63	—	0.5	M190-A-40	—	—	—
15	A/C clutch relay (ACC)	—	W54	—	0.5	M190-B-b	—	—	—
18	Radiator fan control (FANCNTR)	—	W55	—	0.5	M190-A-5	—	—	—
2	Injector 4	—	W50	—	0.5	M190-A-12	—	—	—
20	EVAP purge cut-off solenoid (PGS)	—	W64	—	0.5	M190-B-T	—	—	—
21	Ignition coil 1	—	W41	—	0.5	M190-C-16	—	—	—
22	Ignition coil 2	—	W42	—	0.5	M190-C-8	—	—	—
23	Power ground (PG1)	—	W8	—	0.85	SP-GND-1	—	—	—
24	Power ground (PG2)	—	W9	—	0.85	SP-GND-1	—	—	—
25	ECU power (IGP1)	—	W1	—	0.85	SP-14V-1	—	—	—
26	Sensor ground (LG1)	—	W17	—	0.5	SP-0V-1	—	—	—
3	Injector 2	—	W48	—	0.5	M190-A-3	—	—	—
4	Injector 5	—	W51	—	0.5	M190-A-2	—	—	—
5	Injector 3	—	W49	—	0.5	M190-B-U	—	—	—
6	Injector 6	—	W52	—	0.5	M190-B-V	—	—	—
7	Main relay	—	W56	—	0.5	M190-B-S	—	—	—
8	Fuel pump relay 2 (FLR2)	—	W53	—	0.5	M190-A-1	—	—	—
9	Idle air control valve (IACV)	—	W65	—	0.5	M190-A-25	—	—	—

OEM-B

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
10	CYL 2M — CYP sensor 2 return	—	W18	—	0.5	SP-0V-1	—	—	—
11	CYL 1P — CYP sensor 1 signal	—	W37	—	0.5	M190-C-25	—	—	—
12	CYL 1M — CYP sensor 1 return	—	W19	—	0.5	SP-0V-1	—	—	—
13	CRNK 2P — TDC sensor signal	—	W36	—	0.5	M190-C-32	—	—	—
14	CRNK 2M — TDC sensor return	—	W20	—	0.5	SP-0V-1	—	—	—
15	CRNK 1P — crank sensor signal	—	W35	—	0.5	M190-C-18	—	—	—
16	CRNK 1M — crank sensor return	—	W21	—	0.5	SP-0V-1	—	—	—
2	Chassis ground (LG2)	—	W10	—	0.85	SP-GND-1	—	—	—
3	Ignition coil 6	—	W46	—	0.5	M190-C-4	—	—	—
4	Ignition coil 5	—	W45	—	0.5	M190-C-5	—	—	—
6	Ignition coil 4	—	W44	—	0.5	M190-C-1	—	—	—
7	Neutral switch (M/T) / gear position (A/T)	—	W77	—	0.5	M190-A-30	—	—	—
8	Ignition coil 3	—	W43	—	0.5	M190-C-2	—	—	—
9	CYL 2P — CYP sensor 2 signal	—	W38	—	0.5	M190-C-27	—	—	—

OEM-C

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	ECU power (IGP2)	—	W2	—	0.85	SP-14V-1	—	—	—
10	Traction control	—	—	—	—	—	—	—	—
11	Starter switch (STS)	—	W78	—	0.5	M190-A-37	—	—	—
12	Traction control	—	—	—	—	—	—	—	—
2	Vehicle speed sensor (VSS)	—	W73	—	0.5	M190-C-40	—	—	—
3	A/C switch (ACS)	—	W79	—	0.5	M190-C-17	—	—	—
4	Tachometer output (NEP)	—	—	—	—	—	—	—	—
5	A/C pressure switch (PDSW)	—	W80	—	0.5	M190-C-10	—	—	—
6	Traction control	—	—	—	—	—	—	—	—
7	Clutch switch (M/T)	—	W81	—	0.5	M190-C-22	—	—	—
8	Traction control	—	—	—	—	—	—	—	—
9	Service check connector (SCS)	—	W82	—	0.5	M190-C-21	—	—	—

OEM-D

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	Battery backup (VBU)	—	W7	—	0.85	M190-A-38	—	—	—
11	Throttle position sensor (TPS)	—	W67	—	0.5	M190-C-36	—	—	—
12	EGR lift sensor (EGRL)	—	W72	—	0.5	M190-C-35	—	—	—
13	Engine coolant temperature (ECT)	—	W70	—	0.5	M190-C-37	—	—	—
14	Primary O2 sensor	—	W68	—	0.5	M190-A-7	—	—	—
15	Intake air temperature (IAT)	—	W71	—	0.5	M190-C-39	—	—	—
16	Secondary O2 sensor	—	W69	—	0.5	M190-A-6	—	—	—
17	MAP sensor	—	W66	—	0.5	M190-C-42	—	—	—
18	+5V sensor supply (VCC)	—	W31	—	0.5	SP-5V1-1	—	—	—
19	+5V sensor supply (VCC)	—	W32	—	0.5	SP-5V1-1	—	—	—
20	+5V sensor supply (VCC)	—	W33	—	0.5	SP-5V1-1	—	—	—
21	Sensor ground (SG)	—	W22	—	0.5	SP-0V-1	—	—	—
22	Sensor ground (SG)	—	W23	—	0.5	SP-0V-1	—	—	—
3	Knock sensor — rear	—	W40	—	0.5	M190-C-44	—	—	—
4	Knock sensor — front	—	W39	—	0.5	M190-C-51	—	—	—
5	Traction control	—	—	—	—	—	—	—	—
6	Fuel pump voltage monitor (VFP)	—	—	—	—	—	—	—	—
8	Ignition timing adjuster (IGADJ)	—	W83	—	0.5	M190-C-20	—	—	—
9	Alternator FR signal	—	W74	—	0.5	M190-C-47	—	—	—

SP-0V

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W17	—	0.5	OEM-A-26	—	—	—
1	—	—	W18	—	0.5	OEM-B-10	—	—	—
1	—	—	W19	—	0.5	OEM-B-12	—	—	—
1	—	—	W20	—	0.5	OEM-B-14	—	—	—
1	—	—	W21	—	0.5	OEM-B-16	—	—	—
1	—	—	W22	—	0.5	OEM-D-21	—	—	—
1	—	—	W23	—	0.5	OEM-D-22	—	—	—
1	—	—	W24	—	0.5	M190-A-18	—	—	—
1	—	—	W25	—	0.5	M190-A-19	—	—	—
1	—	—	W26	—	0.5	M190-A-20	—	—	—
1	—	—	W27	—	0.5	M190-C-14	—	—	—
1	—	—	W28	—	0.5	M190-C-15	—	—	—
1	—	—	W29	—	0.5	M190-C-23	—	—	—
1	—	—	W30	—	0.5	M190-C-30	—	—	—

SP-14V

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W1	—	0.85	OEM-A-25	—	—	—
1	—	—	W2	—	0.85	OEM-C-1	—	—	—
1	—	—	W3	—	0.85	M190-B-H	—	—	—
1	—	—	W4	—	0.85	M190-B-J	—	—	—
1	—	—	W5	—	0.85	M190-B-K	—	—	—
1	—	—	W6	—	0.85	M190-B-L	—	—	—

SP-5V1

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W31	—	0.5	OEM-D-18	—	—	—
1	—	—	W32	—	0.5	OEM-D-19	—	—	—
1	—	—	W33	—	0.5	OEM-D-20	—	—	—
1	—	—	W34	—	0.5	M190-A-16	—	—	—

SP-GND

Cavity	Function	Signal	Wire	Colour	Gauge (mm²)	Destination	Terminal	Seal	Plug
1	—	—	W8	—	0.85	OEM-A-23	—	—	—
1	—	—	W9	—	0.85	OEM-A-24	—	—	—
1	—	—	W10	—	0.85	OEM-B-2	—	—	—
1	—	—	W11	—	0.85	M190-B-G	—	—	—
1	—	—	W12	—	0.85	M190-B-W	—	—	—
1	—	—	W13	—	0.85	M190-B-X	—	—	—
1	—	—	W14	—	0.85	M190-B-Y	—	—	—
1	—	—	W15	—	0.85	M190-B-Z	—	—	—
1	—	—	W16	—	0.85	M190-B-c	—	—	—

Pin map

OEM point	OEM function	OEM family	Target point	Target function	Target family	Evidence
OEM-5-F2	Front VTEC pressure switch	digital_in	M190-A-21	Digital Input 1	digital_in	single_source
OEM-5-F4	Rear VTEC pressure switch	digital_in	M190-A-14	Digital Input 2	digital_in	single_source
OEM-5-F5	Front VTEC solenoid valve	high_side_out	M190-B-A	Half Bridge Output 1	hbridge_out	single_source
OEM-5-F7	Rear VTEC solenoid valve	high_side_out	M190-B-B	Half Bridge Output 2	hbridge_out	single_source
OEM-A-1	Injector 1	injector_out	M190-A-11	Peak Hold Injector 1	injector_out	single_source
OEM-A-10	Front O2 sensor heater (HTCNTF)	low_side_out	M190-B-C	Half Bridge Output 3	hbridge_out	single_source
OEM-A-11	EGR control solenoid	low_side_out	M190-A-48	Low Side Injector 5	injector_out	single_source
OEM-A-12	Rear O2 sensor heater (HTCNTR)	low_side_out	M190-B-D	Half Bridge Output 4	hbridge_out	single_source
OEM-A-13	Check engine light (WARN)	low_side_out	M190-B-a	Low Side Injector 5	injector_out	single_source
OEM-A-14	Chamber volume control solenoid (BPS)	low_side_out	M190-A-40	Low Side Injector 6	injector_out	single_source
OEM-A-15	A/C clutch relay (ACC)	low_side_out	M190-B-b	Low Side Injector 3	injector_out	single_source
OEM-A-18	Radiator fan control (FANCNTR)	low_side_out	M190-A-5	Low Side Injector 4	injector_out	single_source
OEM-A-2	Injector 4	injector_out	M190-A-12	Peak Hold Injector 2	injector_out	single_source
OEM-A-20	EVAP purge cut-off solenoid (PGS)	low_side_out	M190-B-T	Low Side Injector 6	injector_out	single_source
OEM-A-21	Ignition coil 1	ignition_out	M190-C-16	Low Side Ignition 1	ignition_out	single_source
OEM-A-22	Ignition coil 2	ignition_out	M190-C-8	Low Side Ignition 2	ignition_out	single_source
OEM-A-23	Power ground (PG1)	ground	M190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-c	Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6	ground	single_source
OEM-A-24	Power ground (PG2)	ground	M190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-c	Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6	ground	single_source
OEM-A-25	ECU power (IGP1)	power_in	M190-B-H + M190-B-J + M190-B-K + M190-B-L	Battery Positive 1 + Battery Positive 2 + Battery Positive 3 + Battery Positive 4	power_in	single_source
OEM-A-26	Sensor ground (LG1)	sensor_ground	M190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30	Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2	sensor_ground	single_source
OEM-A-3	Injector 2	injector_out	M190-A-3	Low Side Injector 1	injector_out	single_source
OEM-A-4	Injector 5	injector_out	M190-A-2	Low Side Injector 2	injector_out	corroborated
OEM-A-5	Injector 3	injector_out	M190-B-U	Low Side Injector 1	injector_out	single_source
OEM-A-6	Injector 6	injector_out	M190-B-V	Low Side Injector 2	injector_out	single_source
OEM-A-7	Main relay	low_side_out	M190-B-S	Low Side Injector 4	injector_out	single_source
OEM-A-8	Fuel pump relay 2 (FLR2)	low_side_out	M190-A-1	Low Side Injector 3	injector_out	single_source
OEM-A-9	Idle air control valve (IACV)	low_side_out	M190-A-25	Low Side Injector 7	injector_out	single_source
OEM-B-10	CYL 2M — CYP sensor 2 return	sensor_ground	M190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30	Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2	sensor_ground	single_source
OEM-B-11	CYL 1P — CYP sensor 1 signal	trigger_in	M190-C-25	Universal Digital Input 3	digital_in	single_source
OEM-B-12	CYL 1M — CYP sensor 1 return	sensor_ground	M190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30	Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2	sensor_ground	single_source
OEM-B-13	CRNK 2P — TDC sensor signal	trigger_in	M190-C-32	Universal Digital Input 2	digital_in	single_source
OEM-B-14	CRNK 2M — TDC sensor return	sensor_ground	M190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30	Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2	sensor_ground	single_source
OEM-B-15	CRNK 1P — crank sensor signal	trigger_in	M190-C-18	Universal Digital Input 1	digital_in	single_source
OEM-B-16	CRNK 1M — crank sensor return	sensor_ground	M190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30	Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2	sensor_ground	single_source
OEM-B-2	Chassis ground (LG2)	ground	M190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-c	Battery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6	ground	single_source
OEM-B-3	Ignition coil 6	ignition_out	M190-C-4	Low Side Ignition 6	ignition_out	single_source
OEM-B-4	Ignition coil 5	ignition_out	M190-C-5	Low Side Ignition 5	ignition_out	single_source
OEM-B-6	Ignition coil 4	ignition_out	M190-C-1	Low Side Ignition 4	ignition_out	single_source
OEM-B-7	Neutral switch (M/T) / gear position (A/T)	digital_in	M190-A-30	Digital Input 3	digital_in	single_source
OEM-B-8	Ignition coil 3	ignition_out	M190-C-2	Low Side Ignition 3	ignition_out	single_source
OEM-B-9	CYL 2P — CYP sensor 2 signal	trigger_in	M190-C-27	Universal Digital Input 4	digital_in	single_source
OEM-C-1	ECU power (IGP2)	power_in	M190-B-H + M190-B-J + M190-B-K + M190-B-L	Battery Positive 1 + Battery Positive 2 + Battery Positive 3 + Battery Positive 4	power_in	single_source
OEM-C-10	Traction control	—	—	—	—	single_source
OEM-C-11	Starter switch (STS)	digital_in	M190-A-37	Digital Input 4	digital_in	single_source
OEM-C-12	Traction control	—	—	—	—	single_source
OEM-C-2	Vehicle speed sensor (VSS)	digital_in	M190-C-40	Universal Digital Input 5	digital_in	single_source
OEM-C-3	A/C switch (ACS)	digital_in	M190-C-17	Universal Digital Input 7	digital_in	single_source
OEM-C-4	Tachometer output (NEP)	tacho_out	—	—	—	single_source
OEM-C-5	A/C pressure switch (PDSW)	digital_in	M190-C-10	Universal Digital Input 8	digital_in	single_source
OEM-C-6	Traction control	—	—	—	—	single_source
OEM-C-7	Clutch switch (M/T)	digital_in	M190-C-22	Universal Digital Input 9	digital_in	single_source
OEM-C-8	Traction control	—	—	—	—	single_source
OEM-C-9	Service check connector (SCS)	digital_in	M190-C-21	Universal Digital Input 10	digital_in	single_source
OEM-D-1	Battery backup (VBU)	power_in	M190-A-38	Battery Backup	power_in	single_source
OEM-D-11	Throttle position sensor (TPS)	analog_in	M190-C-36	Analogue Voltage Input 2	analog_in	single_source
OEM-D-12	EGR lift sensor (EGRL)	analog_in	M190-C-35	Analogue Voltage Input 3	analog_in	single_source
OEM-D-13	Engine coolant temperature (ECT)	temp_in	M190-C-37	Analogue Temperature Input 1	temp_in	single_source
OEM-D-14	Primary O2 sensor	lambda_nb_in	M190-A-7	Lambda Narrow Input 1	lambda_nb_in	single_source
OEM-D-15	Intake air temperature (IAT)	temp_in	M190-C-39	Analogue Temperature Input 2	temp_in	single_source
OEM-D-16	Secondary O2 sensor	lambda_nb_in	M190-A-6	Lambda Narrow Input 2	lambda_nb_in	single_source
OEM-D-17	MAP sensor	analog_in	M190-C-42	Analogue Voltage Input 1	analog_in	single_source
OEM-D-18	+5V sensor supply (VCC)	vref	M190-A-16	Sensor 5.0V C3	vref	single_source
OEM-D-19	+5V sensor supply (VCC)	vref	M190-A-16	Sensor 5.0V C3	vref	single_source
OEM-D-20	+5V sensor supply (VCC)	vref	M190-A-16	Sensor 5.0V C3	vref	single_source
OEM-D-21	Sensor ground (SG)	sensor_ground	M190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30	Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2	sensor_ground	single_source
OEM-D-22	Sensor ground (SG)	sensor_ground	M190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30	Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2	sensor_ground	single_source
OEM-D-3	Knock sensor — rear	knock_in	M190-C-44	Knock Input 2	knock_in	single_source
OEM-D-4	Knock sensor — front	knock_in	M190-C-51	Knock Input 1	knock_in	single_source
OEM-D-5	Traction control	—	—	—	—	single_source
OEM-D-6	Fuel pump voltage monitor (VFP)	—	—	—	—	corroborated
OEM-D-8	Ignition timing adjuster (IGADJ)	digital_in	M190-C-20	Universal Digital Input 11	digital_in	single_source
OEM-D-9	Alternator FR signal	digital_in	M190-C-47	Universal Digital Input 6	digital_in	single_source

Cut list

Wire	From	To	Gauge (mm²)	Length	Signal	Ident
W1	OEM-A-25	SP-14V-1	0.85	no route	ECU power (IGP1)	—
W2	OEM-C-1	SP-14V-1	0.85	no route	ECU power (IGP2)	—
W3	SP-14V-1	M190-B-H	0.85	no route	Battery Positive 1	—
W4	SP-14V-1	M190-B-J	0.85	no route	Battery Positive 2	—
W5	SP-14V-1	M190-B-K	0.85	no route	Battery Positive 3	—
W6	SP-14V-1	M190-B-L	0.85	no route	Battery Positive 4	—
W7	OEM-D-1	M190-A-38	0.85	no route	Battery backup (VBU)	—
W8	OEM-A-23	SP-GND-1	0.85	no route	Power ground (PG1)	—
W9	OEM-A-24	SP-GND-1	0.85	no route	Power ground (PG2)	—
W10	OEM-B-2	SP-GND-1	0.85	no route	Chassis ground (LG2)	—
W11	SP-GND-1	M190-B-G	0.85	no route	Battery Negative 1	—
W12	SP-GND-1	M190-B-W	0.85	no route	Battery Negative 2	—
W13	SP-GND-1	M190-B-X	0.85	no route	Battery Negative 3	—
W14	SP-GND-1	M190-B-Y	0.85	no route	Battery Negative 4	—
W15	SP-GND-1	M190-B-Z	0.85	no route	Battery Negative 5	—
W16	SP-GND-1	M190-B-c	0.85	no route	Battery Negative 6	—
W17	OEM-A-26	SP-0V-1	0.5	no route	Sensor ground (LG1)	—
W18	OEM-B-10	SP-0V-1	0.5	no route	CYL 2M — CYP sensor 2 return	—
W19	OEM-B-12	SP-0V-1	0.5	no route	CYL 1M — CYP sensor 1 return	—
W20	OEM-B-14	SP-0V-1	0.5	no route	CRNK 2M — TDC sensor return	—
W21	OEM-B-16	SP-0V-1	0.5	no route	CRNK 1M — crank sensor return	—
W22	OEM-D-21	SP-0V-1	0.5	no route	Sensor ground (SG)	—
W23	OEM-D-22	SP-0V-1	0.5	no route	Sensor ground (SG)	—
W24	SP-0V-1	M190-A-18	0.5	no route	Sensor 0V C1	—
W25	SP-0V-1	M190-A-19	0.5	no route	Sensor 0V C2	—
W26	SP-0V-1	M190-A-20	0.5	no route	Sensor 0V C3	—
W27	SP-0V-1	M190-C-14	0.5	no route	Sensor 0V A1	—
W28	SP-0V-1	M190-C-15	0.5	no route	Sensor 0V A2	—
W29	SP-0V-1	M190-C-23	0.5	no route	Sensor 0V B1	—
W30	SP-0V-1	M190-C-30	0.5	no route	Sensor 0V B2	—
W31	OEM-D-18	SP-5V1-1	0.5	no route	+5V sensor supply (VCC)	—
W32	OEM-D-19	SP-5V1-1	0.5	no route	+5V sensor supply (VCC)	—
W33	OEM-D-20	SP-5V1-1	0.5	no route	+5V sensor supply (VCC)	—
W34	SP-5V1-1	M190-A-16	0.5	no route	Sensor 5.0V C3	—
W35	OEM-B-15	M190-C-18	0.5	no route	CRNK 1P — crank sensor signal	—
W36	OEM-B-13	M190-C-32	0.5	no route	CRNK 2P — TDC sensor signal	—
W37	OEM-B-11	M190-C-25	0.5	no route	CYL 1P — CYP sensor 1 signal	—
W38	OEM-B-9	M190-C-27	0.5	no route	CYL 2P — CYP sensor 2 signal	—
W39	OEM-D-4	M190-C-51	0.5	no route	Knock sensor — front	—
W40	OEM-D-3	M190-C-44	0.5	no route	Knock sensor — rear	—
W41	OEM-A-21	M190-C-16	0.5	no route	Ignition coil 1	—
W42	OEM-A-22	M190-C-8	0.5	no route	Ignition coil 2	—
W43	OEM-B-8	M190-C-2	0.5	no route	Ignition coil 3	—
W44	OEM-B-6	M190-C-1	0.5	no route	Ignition coil 4	—
W45	OEM-B-4	M190-C-5	0.5	no route	Ignition coil 5	—
W46	OEM-B-3	M190-C-4	0.5	no route	Ignition coil 6	—
W47	OEM-A-1	M190-A-11	0.5	no route	Injector 1	—
W48	OEM-A-3	M190-A-3	0.5	no route	Injector 2	—
W49	OEM-A-5	M190-B-U	0.5	no route	Injector 3	—
W50	OEM-A-2	M190-A-12	0.5	no route	Injector 4	—
W51	OEM-A-4	M190-A-2	0.5	no route	Injector 5	—
W52	OEM-A-6	M190-B-V	0.5	no route	Injector 6	—
W53	OEM-A-8	M190-A-1	0.5	no route	Fuel pump relay 2 (FLR2)	—
W54	OEM-A-15	M190-B-b	0.5	no route	A/C clutch relay (ACC)	—
W55	OEM-A-18	M190-A-5	0.5	no route	Radiator fan control (FANCNTR)	—
W56	OEM-A-7	M190-B-S	0.5	no route	Main relay	—
W57	OEM-5-F5	M190-B-A	0.5	no route	Front VTEC solenoid valve	—
W58	OEM-5-F7	M190-B-B	0.5	no route	Rear VTEC solenoid valve	—
W59	OEM-A-10	M190-B-C	0.5	no route	Front O2 sensor heater (HTCNTF)	—
W60	OEM-A-12	M190-B-D	0.5	no route	Rear O2 sensor heater (HTCNTR)	—
W61	OEM-A-11	M190-A-48	0.5	no route	EGR control solenoid	—
W62	OEM-A-13	M190-B-a	0.5	no route	Check engine light (WARN)	—
W63	OEM-A-14	M190-A-40	0.5	no route	Chamber volume control solenoid (BPS)	—
W64	OEM-A-20	M190-B-T	0.5	no route	EVAP purge cut-off solenoid (PGS)	—
W65	OEM-A-9	M190-A-25	0.5	no route	Idle air control valve (IACV)	—
W66	OEM-D-17	M190-C-42	0.5	no route	MAP sensor	—
W67	OEM-D-11	M190-C-36	0.5	no route	Throttle position sensor (TPS)	—
W68	OEM-D-14	M190-A-7	0.5	no route	Primary O2 sensor	—
W69	OEM-D-16	M190-A-6	0.5	no route	Secondary O2 sensor	—
W70	OEM-D-13	M190-C-37	0.5	no route	Engine coolant temperature (ECT)	—
W71	OEM-D-15	M190-C-39	0.5	no route	Intake air temperature (IAT)	—
W72	OEM-D-12	M190-C-35	0.5	no route	EGR lift sensor (EGRL)	—
W73	OEM-C-2	M190-C-40	0.5	no route	Vehicle speed sensor (VSS)	—
W74	OEM-D-9	M190-C-47	0.5	no route	Alternator FR signal	—
W75	OEM-5-F2	M190-A-21	0.5	no route	Front VTEC pressure switch	—
W76	OEM-5-F4	M190-A-14	0.5	no route	Rear VTEC pressure switch	—
W77	OEM-B-7	M190-A-30	0.5	no route	Neutral switch (M/T) / gear position (A/T)	—
W78	OEM-C-11	M190-A-37	0.5	no route	Starter switch (STS)	—
W79	OEM-C-3	M190-C-17	0.5	no route	A/C switch (ACS)	—
W80	OEM-C-5	M190-C-10	0.5	no route	A/C pressure switch (PDSW)	—
W81	OEM-C-7	M190-C-22	0.5	no route	Clutch switch (M/T)	—
W82	OEM-C-9	M190-C-21	0.5	no route	Service check connector (SCS)	—
W83	OEM-D-8	M190-C-20	0.5	no route	Ignition timing adjuster (IGADJ)	—

Bill of materials

Category	Part number	Manufacturer	Description	Qty	Unit

ECU setup sheet

Role	Engine ref	Engine signal	Sensor	ECU point	ECU function	ECU class	Setup flag
No configured channels.

Findings

Open (18)

Severity	Code	Subject	Message
warn	NET_FAMILY	OEM-5-F5 ↔ M190-B-A	OEM-5-F5 "Front VTEC solenoid valve" [high_side_out] is wired to M190-B-A "Half Bridge Output 1" [hbridge_out]. A half-bridge can act as a high-side switch only if configured that way.
warn	NET_FAMILY	OEM-5-F7 ↔ M190-B-B	OEM-5-F7 "Rear VTEC solenoid valve" [high_side_out] is wired to M190-B-B "Half Bridge Output 2" [hbridge_out]. A half-bridge can act as a high-side switch only if configured that way.
warn	NET_FAMILY	OEM-A-10 ↔ M190-B-C	OEM-A-10 "Front O2 sensor heater (HTCNTF)" [low_side_out] is wired to M190-B-C "Half Bridge Output 3" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warn	NET_FAMILY	OEM-A-12 ↔ M190-B-D	OEM-A-12 "Rear O2 sensor heater (HTCNTR)" [low_side_out] is wired to M190-B-D "Half Bridge Output 4" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warn	NET_FAMILY	OEM-B-11 ↔ M190-C-25	OEM-B-11 "CYL 1P — CYP sensor 1 signal" [trigger_in] is wired to M190-C-25 "Universal Digital Input 3" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
warn	NET_FAMILY	OEM-B-13 ↔ M190-C-32	OEM-B-13 "CRNK 2P — TDC sensor signal" [trigger_in] is wired to M190-C-32 "Universal Digital Input 2" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
warn	NET_FAMILY	OEM-B-15 ↔ M190-C-18	OEM-B-15 "CRNK 1P — crank sensor signal" [trigger_in] is wired to M190-C-18 "Universal Digital Input 1" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
warn	NET_FAMILY	OEM-B-9 ↔ M190-C-27	OEM-B-9 "CYL 2P — CYP sensor 2 signal" [trigger_in] is wired to M190-C-27 "Universal Digital Input 4" [digital_in]. Hall-type cam/speed signals can use a digital input if it handles the frequency; VR signals cannot.
info	NET_FAMILY	OEM-A-11 ↔ M190-A-48	OEM-A-11 "EGR control solenoid" [low_side_out] is wired to M190-A-48 "Low Side Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-A-13 ↔ M190-B-a	OEM-A-13 "Check engine light (WARN)" [low_side_out] is wired to M190-B-a "Low Side Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-A-14 ↔ M190-A-40	OEM-A-14 "Chamber volume control solenoid (BPS)" [low_side_out] is wired to M190-A-40 "Low Side Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-A-15 ↔ M190-B-b	OEM-A-15 "A/C clutch relay (ACC)" [low_side_out] is wired to M190-B-b "Low Side Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-A-18 ↔ M190-A-5	OEM-A-18 "Radiator fan control (FANCNTR)" [low_side_out] is wired to M190-A-5 "Low Side Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-A-20 ↔ M190-B-T	OEM-A-20 "EVAP purge cut-off solenoid (PGS)" [low_side_out] is wired to M190-B-T "Low Side Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-A-7 ↔ M190-B-S	OEM-A-7 "Main relay" [low_side_out] is wired to M190-B-S "Low Side Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-A-8 ↔ M190-A-1	OEM-A-8 "Fuel pump relay 2 (FLR2)" [low_side_out] is wired to M190-A-1 "Low Side Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	NET_FAMILY	OEM-A-9 ↔ M190-A-25	OEM-A-9 "Idle air control valve (IACV)" [low_side_out] is wired to M190-A-25 "Low Side Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
info	UNMAPPED	OEM	7 optional OEM pins are not mapped: OEM-C-10 Traction control; OEM-C-12 Traction control; OEM-C-4 Tachometer output (NEP); OEM-C-6 Traction control; OEM-C-8 Traction control; OEM-D-5 Traction control; OEM-D-6 Fuel pump voltage monitor (VFP)

Accepted (0)

Code	Subject	Reason	By

Notes

Fit check: unconfirmed. Confirm these before building: - Trigger pattern for Honda C30A not found in the ECU's docs (M150 engine-speed modes (datasheet 23514) list CBR250RR/F20C/J35A/K20/K20C1/K24AZ7/L15B7 — no C30A/C32B/NSX) Auto-mapped by auto_map() from the library pin data on 2026-10-06. Review every wire against both manuals before building. Not wired: - OEM-C 4: Tachometer output (NEP): no free tacho/frequency_out/low_side/ls_hs on MoTeC M190 - OEM-C 10: Traction control: not classified in the library; wire by hand - OEM-C 12: Traction control: not classified in the library; wire by hand - OEM-C 6: Traction control: not classified in the library; wire by hand - OEM-C 8: Traction control: not classified in the library; wire by hand - OEM-D 5: Traction control: not classified in the library; wire by hand - OEM-D 6: Fuel pump voltage monitor (VFP): not classified in the library; wire by hand

Sources

Reliability	Kind	Title	URL	Archive	Captured	SHA-256
4	vendor_doc	AEM EMS 30-1042 (Series 1) plug-and-play install manual — 1991-94 NSX	https://fancy-craft.firebaseapp.com/NSX/report/ecu/EMS_-_30-1042.pdf	archive	2026-10-05	0cad10bc64b5
4	vendor_doc	MoTeC: M1 ECU Hardware manual (7 Nov 2013) — M130/M150/M170/M190 pinout tables	https://web.archive.org/web/2023id_/https://www.motec.com.au/hessian/uploads/M1_ECU_Hardware_c2517380e4.pdf	—	2026-10-05	03dc5975f739
3	vendor_doc	dodo-upgrades: Honda OBD1 V6 ECU pinout	https://dodo-upgrades.nl/index.php/obd1-v6-pinouts/	archive	2026-10-05	f9539af28904