Name: Engine harness
Creator: willacompton@gmail.com
License: https://creativecommons.org/licenses/by-sa/4.0/

Components

Ref	Kind	Exclude from BOM
AFM	connector	included
BAT	connector	included
BOOST	connector	included
CAS	connector	included
ECT	connector	included
F1	fuse	included
IAT	connector	included
INJ1	connector	included
INJ2	connector	included
INJ3	connector	included
INJ4	connector	included
ISC	connector	included
KS	connector	included
LEAD	connector	included
MAP	connector	included
NEW-IGN	terminal	included
O2	connector	included
RLY	connector	included
SP-0V	splice	included
SP-14V	splice	included
SP-5V1	splice	included
SP-GND	splice	included
SPEEDUINO-A	connector	included
TPS	connector	included
TRAIL1	connector	included
TRAIL2	connector	included

Create part

KindManufacturerPart numberDescriptionUnit price

Cut list

Lengths need a layout (0 of 39 routed).

Wire	From / To	Gauge	Signal
W1	LEAD-GND / SP-GND-1	0.85	Coil ground
W2	TRAIL1-GND / SP-GND-1	0.85	Coil ground
W3	TRAIL2-GND / SP-GND-1	0.85	Coil ground
W4	SP-GND-1 / SPEEDUINO-A-10	0.85	Ground
W5	SP-GND-1 / SPEEDUINO-A-9	0.85	Ground
W6	AFM-GND / SP-0V-1	0.5	AFM ground
W7	CAS-GND / SP-0V-1	0.5	CAS ground
W8	ECT-GND / SP-0V-1	0.5	ECT sensor ground
W9	IAT-GND / SP-0V-1	0.5	IAT sensor ground
W10	KS-GND / SP-0V-1	0.5	Knock shield/return
W11	MAP-GND / SP-0V-1	0.5	MAP sensor ground
W12	TPS-GND / SP-0V-1	0.5	TPS sensor ground
W13	SP-0V-1 / SPEEDUINO-A-12	0.5	Ground
W14	SP-0V-1 / SPEEDUINO-A-23	0.5	Ground
W15	MAP-VCC / SP-5V1-1	0.5	MAP 5V supply
W16	TPS-VCC / SP-5V1-1	0.5	TPS 5V supply
W17	SP-5V1-1 / SPEEDUINO-A-13	0.5	5V
W18	CAS-NE / SPEEDUINO-A-25	0.5	Crank signal (NE)
W19	CAS-G / SPEEDUINO-A-24	0.5	Home signal (G)
W20	TRAIL1-TRG / SPEEDUINO-A-7	0.5	Trailing trigger
W21	TRAIL2-TRG / SPEEDUINO-A-34	0.5	Trailing trigger
W22	LEAD-TRG / SPEEDUINO-A-33	0.5	Leading trigger
W23	INJ1-SIG / SPEEDUINO-A-1	0.5	Injector low side
W24	INJ2-SIG / SPEEDUINO-A-2	0.5	Injector low side
W25	INJ3-SIG / SPEEDUINO-A-3	0.5	Injector low side
W26	INJ4-SIG / SPEEDUINO-A-5	0.5	Injector low side
W27	RLY-COIL- / SPEEDUINO-A-16	0.5	Relay coil negative (ECU low-side driver)
W28	BOOST-SIG / SPEEDUINO-A-35	0.5	Turbo VSV low side
W29	ISC-SIG / SPEEDUINO-A-36	0.5	ISC low side
W30	MAP-SIG / SPEEDUINO-A-11	0.5	MAP signal
W31	TPS-SIG / SPEEDUINO-A-22	0.5	TPS signal
W32	O2-SIG / SPEEDUINO-A-21	0.5	O2 signal
W33	ECT-SIG / SPEEDUINO-A-19	0.5	ECT signal
W34	IAT-SIG / SPEEDUINO-A-20	0.5	IAT signal
W35	BAT-+ / F1-1	3.0	Battery positive
W36	F1-2 / RLY-IN	3.0	Relay contact input (battery + via main fuse)
W37	RLY-OUT / SP-14V-1	3.0	Relay contact output (switched +12V bus)
W38	BAT-- / SP-GND-1	3.0	Battery negative / chassis ground
W39	NEW-IGN-1 / RLY-COIL+	0.5	Relay coil positive (ignition-switched +12V)

Bill of materials

No wire parts assigned: 39 wires need a wire part.

Part number	Manufacturer	Description	Qty	Unit
connector13 lines
MAZDA-RX7-AFM	Denso	RX-7 flapper AFM plug (P/N unknown; 2-way + fuel-pump switch)	1	ea
MAZDA-RX7-CAS	Denso	RX-7 CAS plug (P/N unknown; 3-way)	1	ea
MAZDA-RX7-ECT	Denso	RX-7 ECT sensor plug (P/N unknown; 2-way)	1	ea
MAZDA-RX7-IAT	Denso	RX-7 IAT sensor plug (P/N unknown; 2-way)	1	ea
MAZDA-RX7-INJ	Denso	RX-7 fuel injector plug (P/N unknown; 2-way, metered)	4	ea
MAZDA-RX7-ISC	Denso	RX-7 ISC/BAC solenoid plug (P/N unknown; 2-way)	1	ea
MAZDA-RX7-KS	Denso	RX-7 knock sensor plug (P/N unknown; 2-way)	1	ea
MAZDA-RX7-LEAD	Denso	RX-7 leading ignition coil plug (P/N unknown; 3-way)	1	ea
MAZDA-RX7-MAP	Denso	RX-7 MAP sensor plug (P/N unknown; 3-way)	1	ea
MAZDA-RX7-O2	Denso	RX-7 O2 sensor plug (P/N unknown; 1-way)	1	ea
MAZDA-RX7-TPS	Denso	RX-7 TPS plug (P/N unknown; 3-way)	1	ea
MAZDA-RX7-TRAIL	Denso	RX-7 trailing ignition coil plug (P/N unknown; 3-way)	2	ea
MAZDA-RX7-TURBO	Denso	RX-7 turbo control solenoid plug (P/N unknown; 2-way)	1	ea