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Mazda RX-7 FC 1986-92 (13B-T Turbo II) → MoTeC M190 13190 (auto)

Mazda RX-7 FC 1986-92 (13B-T Turbo II) — MoTeC — M190
Drawn by Michael Gnankou · Rev 0 · proposal · 2026-10-08

Before you start

Statusproposal · not yet verified: nobody has reported building and running this harness
Open errorsnone
Size of the job61 wires · 9 connectors · 0 part lines
ToolsCrimp and extraction tools for each terminal family (see Connectors) · wire strippers · multimeter · heat gun + heat-shrink
Order of work1. 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.

WireFromToGaugeColourCutLabelCrimp ACrimp BPin APin BContinuity
W1OEM-3-ISP-14V-10.85☐☐☐☐☐☐☐
W2SP-14V-1M190-B-H0.85☐☐☐☐☐☐☐
W3SP-14V-1M190-B-J0.85☐☐☐☐☐☐☐
W4SP-14V-1M190-B-K0.85☐☐☐☐☐☐☐
W5SP-14V-1M190-B-L0.85☐☐☐☐☐☐☐
W6OEM-3-JM190-A-380.85☐☐☐☐☐☐☐
W7OEM-2-RSP-GND-10.85☐☐☐☐☐☐☐
W8OEM-3-ASP-GND-10.85☐☐☐☐☐☐☐
W9OEM-3-GSP-GND-10.85☐☐☐☐☐☐☐
W10SP-GND-1M190-B-G0.85☐☐☐☐☐☐☐
W11SP-GND-1M190-B-W0.85☐☐☐☐☐☐☐
W12SP-GND-1M190-B-X0.85☐☐☐☐☐☐☐
W13SP-GND-1M190-B-Y0.85☐☐☐☐☐☐☐
W14SP-GND-1M190-B-Z0.85☐☐☐☐☐☐☐
W15SP-GND-1M190-B-c0.85☐☐☐☐☐☐☐
W16OEM-1-PSP-0V-10.5☐☐☐☐☐☐☐
W17OEM-1-QSP-0V-10.5☐☐☐☐☐☐☐
W18OEM-2-CSP-0V-10.5☐☐☐☐☐☐☐
W19SP-0V-1M190-A-180.5☐☐☐☐☐☐☐
W20SP-0V-1M190-A-190.5☐☐☐☐☐☐☐
W21SP-0V-1M190-A-200.5☐☐☐☐☐☐☐
W22SP-0V-1M190-C-140.5☐☐☐☐☐☐☐
W23SP-0V-1M190-C-150.5☐☐☐☐☐☐☐
W24SP-0V-1M190-C-230.5☐☐☐☐☐☐☐
W25SP-0V-1M190-C-300.5☐☐☐☐☐☐☐
W26OEM-2-AM190-A-160.5☐☐☐☐☐☐☐
W27OEM-1-TM190-C-180.5☐☐☐☐☐☐☐
W28OEM-1-NM190-C-320.5☐☐☐☐☐☐☐
W29OEM-1-RM190-C-510.5☐☐☐☐☐☐☐
W30OEM-1-UM190-C-160.5☐☐☐☐☐☐☐
W31OEM-1-VM190-C-80.5☐☐☐☐☐☐☐
W32OEM-1-XM190-C-20.5☐☐☐☐☐☐☐
W33OEM-3-EM190-A-110.5☐☐☐☐☐☐☐
W34OEM-3-HM190-A-30.5☐☐☐☐☐☐☐
W35OEM-3-CM190-B-U0.5☐☐☐☐☐☐☐
W36OEM-3-FM190-A-120.5☐☐☐☐☐☐☐
W37OEM-1-FM190-A-20.5☐☐☐☐☐☐☐
W38OEM-3-DM190-B-V0.5☐☐☐☐☐☐☐
W39OEM-1-CM190-A-10.5☐☐☐☐☐☐☐
W40OEM-1-SM190-B-b0.5☐☐☐☐☐☐☐
W41OEM-2-KM190-A-50.5☐☐☐☐☐☐☐
W42OEM-2-MM190-B-S0.5☐☐☐☐☐☐☐
W43OEM-2-NM190-A-480.5☐☐☐☐☐☐☐
W44OEM-2-OM190-B-a0.5☐☐☐☐☐☐☐
W45OEM-2-PM190-A-400.5☐☐☐☐☐☐☐
W46OEM-2-QM190-B-T0.5☐☐☐☐☐☐☐
W47OEM-2-EM190-C-420.5☐☐☐☐☐☐☐
W48OEM-2-BM190-C-360.5☐☐☐☐☐☐☐
W49OEM-2-GM190-C-350.5☐☐☐☐☐☐☐
W50OEM-2-DM190-A-70.5☐☐☐☐☐☐☐
W51OEM-2-IM190-C-370.5☐☐☐☐☐☐☐
W52OEM-2-JM190-C-390.5☐☐☐☐☐☐☐
W53OEM-2-LM190-C-380.5☐☐☐☐☐☐☐
W54OEM-2-FM190-C-280.5☐☐☐☐☐☐☐
W55OEM-2-HM190-C-290.5☐☐☐☐☐☐☐
W56OEM-1-OM190-C-250.5☐☐☐☐☐☐☐
W57OEM-1-EM190-A-210.5☐☐☐☐☐☐☐
W58OEM-1-GM190-A-140.5☐☐☐☐☐☐☐
W59OEM-1-HM190-A-300.5☐☐☐☐☐☐☐
W60OEM-1-LM190-A-370.5☐☐☐☐☐☐☐
W61OEM-3-BM190-C-270.5☐☐☐☐☐☐☐

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 AProbe BExpectWhyReading
1M190-A-16M190-B-Gopen (OL)5 V sensor reference must not touch power ground
2M190-A-16M190-A-38open (OL)5 V sensor reference must not touch +12 V supply
3M190-A-16M190-B-Hopen (OL)5 V sensor reference must not touch +12 V supply
4M190-A-18M190-A-16open (OL)sensor ground must not touch 5 V sensor reference
5M190-A-18M190-A-38open (OL)sensor ground must not touch +12 V supply
6M190-A-18M190-B-Hopen (OL)sensor ground must not touch +12 V supply
7M190-B-GM190-A-38open (OL)power ground must not touch +12 V supply
8M190-B-GM190-B-Hopen (OL)power ground must not touch +12 V supply

Revisions

RevLabelByDate
No revisions yet.

Schematic

M190-AM190-BM190-COEM-1OEM-2OEM-3SP-0VSP-14VSP-GND

Connectors

M190-A

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Low Side Injector 3—W39—0.5OEM-1-C———
10Low Side Injector 8————————
11Peak Hold Injector 1—W33—0.5OEM-3-E———
12Peak Hold Injector 2—W36—0.5OEM-3-F———
13Analogue Voltage Input 11————————
14Digital Input 2—W58—0.5OEM-1-G———
15RS232 Receive————————
16Sensor 5.0V C3—W26—0.5OEM-2-A———
17Low Side Injector 11————————
18Sensor 0V C1—W19—0.5SP-0V-1———
19Sensor 0V C2—W20—0.5SP-0V-1———
2Low Side Injector 2—W37—0.5OEM-1-F———
20Sensor 0V C3—W21—0.5SP-0V-1———
21Digital Input 1—W57—0.5OEM-1-E———
22LIN Bus————————
23RS232 Transmit————————
24CAN Bus 2 High————————
25Low Side Injector 7————————
26Peak Hold Injector 3————————
27Analogue Voltage Input 15————————
28Analogue Voltage Input 16————————
29Analogue Voltage Input 17————————
3Low Side Injector 1—W34—0.5OEM-3-H———
30Digital Input 3—W59—0.5OEM-1-H———
31CAN Bus 2 Low————————
32Low Side Injector 10————————
33Peak Hold Injector 4————————
34Analogue Voltage Input 13————————
35Analogue Voltage Input 12————————
36Peak Hold Injector 7————————
37Digital Input 4—W60—0.5OEM-1-L———
38Battery Backup—W6—0.85OEM-3-J———
39CAN Bus 3 High————————
4Low Side Injector 12————————
40Low Side Injector 6—W45—0.5OEM-2-P———
41Analogue Voltage Input 14————————
42Peak Hold Injector 9————————
43Peak Hold Injector 10————————
44Peak Hold Injector 6————————
45Peak Hold Injector 5————————
46CAN Bus 3 Low————————
47Low Side Injector 9————————
48Low Side Injector 5—W43—0.5OEM-2-N———
49Peak Hold Injector 11————————
5Low Side Injector 4—W41—0.5OEM-2-K———
50Peak Hold Injector 12————————
51Peak Hold Injector 8————————
52Low Side Ignition 12————————
53Low Side Ignition 9————————
54Low Side Ignition 10————————
55Low Side Ignition 11————————
6Lambda Narrow Input 2————————
7Lambda Narrow Input 1—W50—0.5OEM-2-D———
8Sensor 5.0V C1————————
9Sensor 5.0V C2————————

M190-B

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
AHalf Bridge Output 1————————
BHalf Bridge Output 2————————
CHalf Bridge Output 3————————
DHalf Bridge Output 4————————
EHalf Bridge Output 5————————
FHalf Bridge Output 6————————
GBattery Negative 1—W10—0.85SP-GND-1———
HBattery Positive 1—W2—0.85SP-14V-1———
JBattery Positive 2—W3—0.85SP-14V-1———
KBattery Positive 3—W4—0.85SP-14V-1———
LBattery Positive 4—W5—0.85SP-14V-1———
MHalf Bridge Output 10————————
NHalf Bridge Output 9————————
PHalf Bridge Output 8————————
RHalf Bridge Output 7————————
SLow Side Injector 4—W42—0.5OEM-2-M———
TLow Side Injector 6—W46—0.5OEM-2-Q———
ULow Side Injector 1—W35—0.5OEM-3-C———
VLow Side Injector 2—W38—0.5OEM-3-D———
WBattery Negative 2—W11—0.85SP-GND-1———
XBattery Negative 3—W12—0.85SP-GND-1———
YBattery Negative 4—W13—0.85SP-GND-1———
ZBattery Negative 5—W14—0.85SP-GND-1———
aLow Side Injector 5—W44—0.5OEM-2-O———
bLow Side Injector 3—W40—0.5OEM-1-S———
cBattery Negative 6—W15—0.85SP-GND-1———

M190-C

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Low Side Ignition 4————————
10Universal Digital Input 8————————
11Analogue Voltage Input 6————————
12Analogue Voltage Input 7————————
13Analogue Voltage Input 9————————
14Sensor 0V A1—W22—0.5SP-0V-1———
15Sensor 0V A2—W23—0.5SP-0V-1———
16Low Side Ignition 1—W30—0.5OEM-1-U———
17Universal Digital Input 7————————
18Universal Digital Input 1—W27—0.5OEM-1-T———
19Universal Digital Input 12————————
2Low Side Ignition 3—W32—0.5OEM-1-X———
20Universal Digital Input 11————————
21Universal Digital Input 10————————
22Universal Digital Input 9————————
23Sensor 0V B1—W24—0.5SP-0V-1———
24CAN Bus 1 High————————
25Universal Digital Input 3—W56—0.5OEM-1-O———
26Ethernet Receive -————————
27Universal Digital Input 4—W61—0.5OEM-3-B———
28Analogue Voltage Input 4—W54—0.5OEM-2-F———
29Analogue Voltage Input 5—W55—0.5OEM-2-H———
3Low Side Ignition 8————————
30Sensor 0V B2—W25—0.5SP-0V-1———
31CAN Bus 1 Low————————
32Universal Digital Input 2—W28—0.5OEM-1-N———
33Ethernet Receive +————————
34Ethernet Transmit -————————
35Analogue Voltage Input 3—W49—0.5OEM-2-G———
36Analogue Voltage Input 2—W48—0.5OEM-2-B———
37Analogue Temperature Input 1—W51—0.5OEM-2-I———
38Analogue Temperature Input 3—W53—0.5OEM-2-L———
39Analogue Temperature Input 2—W52—0.5OEM-2-J———
4Low Side Ignition 6————————
40Universal Digital Input 5————————
41Ethernet Transmit +————————
42Analogue Voltage Input 1—W47—0.5OEM-2-E———
43Knock Input 3————————
44Knock Input 2————————
45Analogue Temperature Input 5————————
46Analogue Temperature Input 4————————
47Universal Digital Input 6————————
48Sensor 5.0V A1————————
49Knock Input 4————————
5Low Side Ignition 5————————
50Sensor 5.0V B1————————
51Knock Input 1—W29—0.5OEM-1-R———
52Analogue Temperature Input 6————————
53Sensor 5.0V A2————————
54Sensor 6.3V————————
55Sensor 5.0V B2————————
6Analogue Voltage Input 8————————
7Analogue Voltage Input 10————————
8Low Side Ignition 2—W31—0.5OEM-1-V———
9Low Side Ignition 7————————

OEM-1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
CAir bypass solenoid—W39—0.5M190-A-1———
EA/C request—W57—0.5M190-A-21———
FA/C clutch relay—W37—0.5M190-A-2———
GNeutral switch—W58—0.5M190-A-14———
HWater temperature switch—W59—0.5M190-A-30———
LClutch switch—W60—0.5M190-A-37———
MIgnition feedback (tacho)————————
NCAS 2-tooth (G, cam)—W28—0.5M190-C-32———
OVehicle speed (mileage sensor)—W56—0.5M190-C-25———
PCAS ground—W16—0.5SP-0V-1———
QCAS ground—W17—0.5SP-0V-1———
RKnock input—W29—0.5M190-C-51———
SPort air valve—W40—0.5M190-B-b———
TCAS 24-tooth (NE, crank)—W27—0.5M190-C-18———
UIgnition select (trailing rotor)—W30—0.5M190-C-16———
VIgnition leading—W31—0.5M190-C-8———
XIgnition trailing—W32—0.5M190-C-2———

OEM-2

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
A5V sensor supply—W26—0.5M190-A-16———
BMAP (pressure) signal—W48—0.5M190-C-36———
CSensor ground—W18—0.5SP-0V-1———
DO2 sensor signal—W50—0.5M190-A-7———
EAirflow signal (AFM)—W47—0.5M190-C-42———
FVariable resistor (tuning)—W54—0.5M190-C-28———
GThrottle position (TPS)—W49—0.5M190-C-35———
HAtmospheric pressure (ATP)—W55—0.5M190-C-29———
ICoolant temperature (ECT)—W51—0.5M190-C-37———
JInlet air temperature (IAT)—W52—0.5M190-C-39———
KTurbo control valve (boost)—W41—0.5M190-A-5———
LManifold air temperature (MAT)—W53—0.5M190-C-38———
MPressure regulator control valve—W42—0.5M190-B-S———
NEGR valve—W43—0.5M190-A-48———
OSwitching valve—W44—0.5M190-B-a———
PRelief valve—W45—0.5M190-A-40———
QIdle control (BAC)—W46—0.5M190-B-T———
RPower ground—W7—0.85SP-GND-1———

OEM-3

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
APower ground—W8—0.85SP-GND-1———
BStarter input—W61—0.5M190-C-27———
CPrimary injector 2—W35—0.5M190-B-U———
DStarter inhibit / fuel pump control—W38—0.5M190-B-V———
EPrimary injector 1—W33—0.5M190-A-11———
FSecondary injector 2—W36—0.5M190-A-12———
GPower ground—W9—0.85SP-GND-1———
HSecondary injector 1—W34—0.5M190-A-3———
IIgnition power (+12V via main relay)—W1—0.85SP-14V-1———
JBattery constant (+12V)—W6—0.85M190-A-38———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W16—0.5OEM-1-P———
1——W17—0.5OEM-1-Q———
1——W18—0.5OEM-2-C———
1——W19—0.5M190-A-18———
1——W20—0.5M190-A-19———
1——W21—0.5M190-A-20———
1——W22—0.5M190-C-14———
1——W23—0.5M190-C-15———
1——W24—0.5M190-C-23———
1——W25—0.5M190-C-30———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-3-I———
1——W2—0.85M190-B-H———
1——W3—0.85M190-B-J———
1——W4—0.85M190-B-K———
1——W5—0.85M190-B-L———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W7—0.85OEM-2-R———
1——W8—0.85OEM-3-A———
1——W9—0.85OEM-3-G———
1——W10—0.85M190-B-G———
1——W11—0.85M190-B-W———
1——W12—0.85M190-B-X———
1——W13—0.85M190-B-Y———
1——W14—0.85M190-B-Z———
1——W15—0.85M190-B-c———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-1-CAir bypass solenoidlow_side_outM190-A-1Low Side Injector 3injector_outsingle_source
OEM-1-EA/C requestdigital_inM190-A-21Digital Input 1digital_insingle_source
OEM-1-FA/C clutch relaylow_side_outM190-A-2Low Side Injector 2injector_outsingle_source
OEM-1-GNeutral switchdigital_inM190-A-14Digital Input 2digital_incorroborated
OEM-1-HWater temperature switchdigital_inM190-A-30Digital Input 3digital_incorroborated
OEM-1-LClutch switchdigital_inM190-A-37Digital Input 4digital_insingle_source
OEM-1-MIgnition feedback (tacho)tacho_out———single_source
OEM-1-NCAS 2-tooth (G, cam)trigger_inM190-C-32Universal Digital Input 2digital_incorroborated
OEM-1-OVehicle speed (mileage sensor)digital_inM190-C-25Universal Digital Input 3digital_insingle_source
OEM-1-PCAS groundsensor_groundM190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2sensor_groundcorroborated
OEM-1-QCAS groundsensor_groundM190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2sensor_groundcorroborated
OEM-1-RKnock inputknock_inM190-C-51Knock Input 1knock_incorroborated
OEM-1-SPort air valvelow_side_outM190-B-bLow Side Injector 3injector_outsingle_source
OEM-1-TCAS 24-tooth (NE, crank)trigger_inM190-C-18Universal Digital Input 1digital_incorroborated
OEM-1-UIgnition select (trailing rotor)ignition_outM190-C-16Low Side Ignition 1ignition_outcorroborated
OEM-1-VIgnition leadingignition_outM190-C-8Low Side Ignition 2ignition_outcorroborated
OEM-1-XIgnition trailingignition_outM190-C-2Low Side Ignition 3ignition_outsingle_source
OEM-2-A5V sensor supplyvrefM190-A-16Sensor 5.0V C3vrefsingle_source
OEM-2-BMAP (pressure) signalanalog_inM190-C-36Analogue Voltage Input 2analog_insingle_source
OEM-2-CSensor groundsensor_groundM190-A-18 + M190-A-19 + M190-A-20 + M190-C-14 + M190-C-15 + M190-C-23 + M190-C-30Sensor 0V C1 + Sensor 0V C2 + Sensor 0V C3 + Sensor 0V A1 + Sensor 0V A2 + Sensor 0V B1 + Sensor 0V B2sensor_groundsingle_source
OEM-2-DO2 sensor signallambda_nb_inM190-A-7Lambda Narrow Input 1lambda_nb_insingle_source
OEM-2-EAirflow signal (AFM)analog_inM190-C-42Analogue Voltage Input 1analog_insingle_source
OEM-2-FVariable resistor (tuning)analog_inM190-C-28Analogue Voltage Input 4analog_insingle_source
OEM-2-GThrottle position (TPS)analog_inM190-C-35Analogue Voltage Input 3analog_insingle_source
OEM-2-HAtmospheric pressure (ATP)analog_inM190-C-29Analogue Voltage Input 5analog_insingle_source
OEM-2-ICoolant temperature (ECT)temp_inM190-C-37Analogue Temperature Input 1temp_insingle_source
OEM-2-JInlet air temperature (IAT)temp_inM190-C-39Analogue Temperature Input 2temp_insingle_source
OEM-2-KTurbo control valve (boost)low_side_outM190-A-5Low Side Injector 4injector_outsingle_source
OEM-2-LManifold air temperature (MAT)temp_inM190-C-38Analogue Temperature Input 3temp_insingle_source
OEM-2-MPressure regulator control valvelow_side_outM190-B-SLow Side Injector 4injector_outsingle_source
OEM-2-NEGR valvelow_side_outM190-A-48Low Side Injector 5injector_outsingle_source
OEM-2-OSwitching valvelow_side_outM190-B-aLow Side Injector 5injector_outsingle_source
OEM-2-PRelief valvelow_side_outM190-A-40Low Side Injector 6injector_outsingle_source
OEM-2-QIdle control (BAC)low_side_outM190-B-TLow Side Injector 6injector_outsingle_source
OEM-2-RPower groundgroundM190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-cBattery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6groundsingle_source
OEM-3-APower groundgroundM190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-cBattery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6groundsingle_source
OEM-3-BStarter inputdigital_inM190-C-27Universal Digital Input 4digital_insingle_source
OEM-3-CPrimary injector 2injector_outM190-B-ULow Side Injector 1injector_outsingle_source
OEM-3-DStarter inhibit / fuel pump controllow_side_outM190-B-VLow Side Injector 2injector_outsingle_source
OEM-3-EPrimary injector 1injector_outM190-A-11Peak Hold Injector 1injector_outsingle_source
OEM-3-FSecondary injector 2injector_outM190-A-12Peak Hold Injector 2injector_outsingle_source
OEM-3-GPower groundgroundM190-B-G + M190-B-W + M190-B-X + M190-B-Y + M190-B-Z + M190-B-cBattery Negative 1 + Battery Negative 2 + Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 6groundsingle_source
OEM-3-HSecondary injector 1injector_outM190-A-3Low Side Injector 1injector_outsingle_source
OEM-3-IIgnition power (+12V via main relay)power_inM190-B-H + M190-B-J + M190-B-K + M190-B-LBattery Positive 1 + Battery Positive 2 + Battery Positive 3 + Battery Positive 4power_insingle_source
OEM-3-JBattery constant (+12V)power_inM190-A-38Battery Backuppower_insingle_source

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-3-ISP-14V-10.85no routeIgnition power (+12V via main relay)—
W2SP-14V-1M190-B-H0.85no routeBattery Positive 1—
W3SP-14V-1M190-B-J0.85no routeBattery Positive 2—
W4SP-14V-1M190-B-K0.85no routeBattery Positive 3—
W5SP-14V-1M190-B-L0.85no routeBattery Positive 4—
W6OEM-3-JM190-A-380.85no routeBattery constant (+12V)—
W7OEM-2-RSP-GND-10.85no routePower ground—
W8OEM-3-ASP-GND-10.85no routePower ground—
W9OEM-3-GSP-GND-10.85no routePower ground—
W10SP-GND-1M190-B-G0.85no routeBattery Negative 1—
W11SP-GND-1M190-B-W0.85no routeBattery Negative 2—
W12SP-GND-1M190-B-X0.85no routeBattery Negative 3—
W13SP-GND-1M190-B-Y0.85no routeBattery Negative 4—
W14SP-GND-1M190-B-Z0.85no routeBattery Negative 5—
W15SP-GND-1M190-B-c0.85no routeBattery Negative 6—
W16OEM-1-PSP-0V-10.5no routeCAS ground—
W17OEM-1-QSP-0V-10.5no routeCAS ground—
W18OEM-2-CSP-0V-10.5no routeSensor ground—
W19SP-0V-1M190-A-180.5no routeSensor 0V C1—
W20SP-0V-1M190-A-190.5no routeSensor 0V C2—
W21SP-0V-1M190-A-200.5no routeSensor 0V C3—
W22SP-0V-1M190-C-140.5no routeSensor 0V A1—
W23SP-0V-1M190-C-150.5no routeSensor 0V A2—
W24SP-0V-1M190-C-230.5no routeSensor 0V B1—
W25SP-0V-1M190-C-300.5no routeSensor 0V B2—
W26OEM-2-AM190-A-160.5no route5V sensor supply—
W27OEM-1-TM190-C-180.5no routeCAS 24-tooth (NE, crank)—
W28OEM-1-NM190-C-320.5no routeCAS 2-tooth (G, cam)—
W29OEM-1-RM190-C-510.5no routeKnock input—
W30OEM-1-UM190-C-160.5no routeIgnition select (trailing rotor)—
W31OEM-1-VM190-C-80.5no routeIgnition leading—
W32OEM-1-XM190-C-20.5no routeIgnition trailing—
W33OEM-3-EM190-A-110.5no routePrimary injector 1—
W34OEM-3-HM190-A-30.5no routeSecondary injector 1—
W35OEM-3-CM190-B-U0.5no routePrimary injector 2—
W36OEM-3-FM190-A-120.5no routeSecondary injector 2—
W37OEM-1-FM190-A-20.5no routeA/C clutch relay—
W38OEM-3-DM190-B-V0.5no routeStarter inhibit / fuel pump control—
W39OEM-1-CM190-A-10.5no routeAir bypass solenoid—
W40OEM-1-SM190-B-b0.5no routePort air valve—
W41OEM-2-KM190-A-50.5no routeTurbo control valve (boost)—
W42OEM-2-MM190-B-S0.5no routePressure regulator control valve—
W43OEM-2-NM190-A-480.5no routeEGR valve—
W44OEM-2-OM190-B-a0.5no routeSwitching valve—
W45OEM-2-PM190-A-400.5no routeRelief valve—
W46OEM-2-QM190-B-T0.5no routeIdle control (BAC)—
W47OEM-2-EM190-C-420.5no routeAirflow signal (AFM)—
W48OEM-2-BM190-C-360.5no routeMAP (pressure) signal—
W49OEM-2-GM190-C-350.5no routeThrottle position (TPS)—
W50OEM-2-DM190-A-70.5no routeO2 sensor signal—
W51OEM-2-IM190-C-370.5no routeCoolant temperature (ECT)—
W52OEM-2-JM190-C-390.5no routeInlet air temperature (IAT)—
W53OEM-2-LM190-C-380.5no routeManifold air temperature (MAT)—
W54OEM-2-FM190-C-280.5no routeVariable resistor (tuning)—
W55OEM-2-HM190-C-290.5no routeAtmospheric pressure (ATP)—
W56OEM-1-OM190-C-250.5no routeVehicle speed (mileage sensor)—
W57OEM-1-EM190-A-210.5no routeA/C request—
W58OEM-1-GM190-A-140.5no routeNeutral switch—
W59OEM-1-HM190-A-300.5no routeWater temperature switch—
W60OEM-1-LM190-A-370.5no routeClutch switch—
W61OEM-3-BM190-C-270.5no routeStarter input—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (13)

SeverityCodeSubjectMessage
warnNET_FAMILYOEM-1-N ↔ M190-C-32OEM-1-N "CAS 2-tooth (G, cam)" [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.
warnNET_FAMILYOEM-1-T ↔ M190-C-18OEM-1-T "CAS 24-tooth (NE, crank)" [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.
infoNET_FAMILYOEM-1-C ↔ M190-A-1OEM-1-C "Air bypass solenoid" [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.
infoNET_FAMILYOEM-1-F ↔ M190-A-2OEM-1-F "A/C clutch relay" [low_side_out] is wired to M190-A-2 "Low Side Injector 2" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-1-S ↔ M190-B-bOEM-1-S "Port air valve" [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.
infoNET_FAMILYOEM-2-K ↔ M190-A-5OEM-2-K "Turbo control valve (boost)" [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.
infoNET_FAMILYOEM-2-M ↔ M190-B-SOEM-2-M "Pressure regulator control valve" [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.
infoNET_FAMILYOEM-2-N ↔ M190-A-48OEM-2-N "EGR valve" [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.
infoNET_FAMILYOEM-2-O ↔ M190-B-aOEM-2-O "Switching valve" [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.
infoNET_FAMILYOEM-2-P ↔ M190-A-40OEM-2-P "Relief valve" [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.
infoNET_FAMILYOEM-2-Q ↔ M190-B-TOEM-2-Q "Idle control (BAC)" [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.
infoNET_FAMILYOEM-3-D ↔ M190-B-VOEM-3-D "Starter inhibit / fuel pump control" [low_side_out] is wired to M190-B-V "Low Side Injector 2" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoUNMAPPEDOEM1 optional OEM pins are not mapped: OEM-1-M Ignition feedback (tacho)

Accepted (0)

CodeSubjectReasonBy

Notes

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-1 M: Ignition feedback (tacho): no free tacho/frequency_out/low_side/ls_hs on MoTeC M190

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docAdaptronic: Select RX7 Series 4 FC Turbo plug-in pinouthttps://www.rx7club.com/attachments/adaptronic-engine-mgmt-aus-311/543323d1411579751-need-pin-out-diagram-s5-pnp-rx7_s4_sel_pinout.pdf———
4vendor_docMoTeC: M1 ECU Hardware manual (7 Nov 2013) — M130/M150/M170/M190 pinout tableshttps://web.archive.org/web/2023id_/https://www.motec.com.au/hessian/uploads/M1_ECU_Hardware_c2517380e4.pdf—2026-10-0503dc5975f739
2forumMSExtra: FC3S CAS wiring (NE/G)https://www.msextra.com/forums/viewtopic.php?p=279694———
2forumNoPistons: S4 Turbo II main harness wiring (ECU plug, colours only)https://www.nopistons.com/1st-generation-specific-16/thinking-putting-89-13bt-sa22-66354/page2/———