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Mazda RX-7 FC 1986-92 (13B-T Turbo II) → MoTeC M150 13150 (auto)

Mazda RX-7 FC 1986-92 (13B-T Turbo II) — MoTeC — M150
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 job58 wires · 10 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-1M150-B-130.85☐☐☐☐☐☐☐
W3SP-14V-1M150-B-190.85☐☐☐☐☐☐☐
W4SP-14V-1M150-C-260.85☐☐☐☐☐☐☐
W5OEM-3-JM150-D-120.85☐☐☐☐☐☐☐
W6OEM-2-RSP-GND-10.85☐☐☐☐☐☐☐
W7OEM-3-ASP-GND-10.85☐☐☐☐☐☐☐
W8OEM-3-GSP-GND-10.85☐☐☐☐☐☐☐
W9SP-GND-1M150-A-240.85☐☐☐☐☐☐☐
W10SP-GND-1M150-A-250.85☐☐☐☐☐☐☐
W11SP-GND-1M150-A-320.85☐☐☐☐☐☐☐
W12SP-GND-1M150-C-100.85☐☐☐☐☐☐☐
W13SP-GND-1M150-C-110.85☐☐☐☐☐☐☐
W14OEM-1-PSP-0V-10.5☐☐☐☐☐☐☐
W15OEM-1-QSP-0V-10.5☐☐☐☐☐☐☐
W16OEM-2-CSP-0V-10.5☐☐☐☐☐☐☐
W17SP-0V-1M150-A-260.5☐☐☐☐☐☐☐
W18SP-0V-1M150-A-270.5☐☐☐☐☐☐☐
W19SP-0V-1M150-A-330.5☐☐☐☐☐☐☐
W20SP-0V-1M150-A-340.5☐☐☐☐☐☐☐
W21SP-0V-1M150-D-150.5☐☐☐☐☐☐☐
W22SP-0V-1M150-D-160.5☐☐☐☐☐☐☐
W23OEM-2-AM150-A-100.5☐☐☐☐☐☐☐
W24OEM-1-TM150-D-10.5☐☐☐☐☐☐☐
W25OEM-1-NM150-D-20.5☐☐☐☐☐☐☐
W26OEM-1-RM150-D-70.5☐☐☐☐☐☐☐
W27OEM-1-UM150-C-30.5☐☐☐☐☐☐☐
W28OEM-1-VM150-C-40.5☐☐☐☐☐☐☐
W29OEM-1-XM150-C-50.5☐☐☐☐☐☐☐
W30OEM-3-EM150-C-190.5☐☐☐☐☐☐☐
W31OEM-3-HM150-C-230.5☐☐☐☐☐☐☐
W32OEM-3-CM150-C-200.5☐☐☐☐☐☐☐
W33OEM-3-FM150-C-240.5☐☐☐☐☐☐☐
W34OEM-1-FM150-B-90.5☐☐☐☐☐☐☐
W35OEM-3-DM150-B-150.5☐☐☐☐☐☐☐
W36OEM-1-CM150-B-80.5☐☐☐☐☐☐☐
W37OEM-1-SM150-B-140.5☐☐☐☐☐☐☐
W38OEM-2-KM150-C-210.5☐☐☐☐☐☐☐
W39OEM-2-MM150-C-220.5☐☐☐☐☐☐☐
W40OEM-2-NM150-C-270.5☐☐☐☐☐☐☐
W41OEM-2-OM150-C-280.5☐☐☐☐☐☐☐
W42OEM-2-PM150-C-290.5☐☐☐☐☐☐☐
W43OEM-2-QM150-C-300.5☐☐☐☐☐☐☐
W44OEM-2-EM150-C-140.5☐☐☐☐☐☐☐
W45OEM-2-BM150-C-150.5☐☐☐☐☐☐☐
W46OEM-2-GM150-C-160.5☐☐☐☐☐☐☐
W47OEM-2-DM150-A-110.5☐☐☐☐☐☐☐
W48OEM-2-IM150-D-30.5☐☐☐☐☐☐☐
W49OEM-2-JM150-D-40.5☐☐☐☐☐☐☐
W50OEM-2-LM150-D-50.5☐☐☐☐☐☐☐
W51OEM-2-FM150-C-170.5☐☐☐☐☐☐☐
W52OEM-2-HM150-C-250.5☐☐☐☐☐☐☐
W53OEM-1-OM150-D-80.5☐☐☐☐☐☐☐
W54OEM-1-EM150-A-230.5☐☐☐☐☐☐☐
W55OEM-1-GM150-A-150.5☐☐☐☐☐☐☐
W56OEM-1-HM150-A-160.5☐☐☐☐☐☐☐
W57OEM-1-LM150-A-170.5☐☐☐☐☐☐☐
W58OEM-3-BM150-D-90.5☐☐☐☐☐☐☐

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
1M150-A-10M150-A-24open (OL)5 V sensor reference must not touch power ground
2M150-A-10M150-B-13open (OL)5 V sensor reference must not touch +12 V supply
3M150-A-10M150-D-12open (OL)5 V sensor reference must not touch +12 V supply
4M150-A-24M150-B-13open (OL)power ground must not touch +12 V supply
5M150-A-24M150-D-12open (OL)power ground must not touch +12 V supply
6M150-A-26M150-A-10open (OL)sensor ground must not touch 5 V sensor reference
7M150-A-26M150-B-13open (OL)sensor ground must not touch +12 V supply
8M150-A-26M150-D-12open (OL)sensor ground must not touch +12 V supply

Revisions

RevLabelByDate
No revisions yet.

Schematic

M150-AM150-BM150-CM150-DOEM-1OEM-2OEM-3SP-0VSP-14VSP-GND

Connectors

M150-A

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Analogue Temperature Input 5————————
10Sensor 5.0V C1—W23—0.5OEM-2-A———
11Lambda Narrow Input 1—W47—0.5OEM-2-D———
12Lambda Narrow Input 2————————
13Knock Input 3————————
14Knock Input 4————————
15Digital Input 2—W55—0.5OEM-1-G———
16Digital Input 3—W56—0.5OEM-1-H———
17Digital Input 4—W57—0.5OEM-1-L———
18Sensor 5.0V C2————————
19Sensor 5.0V B2————————
2Analogue Temperature Input 6————————
20LIN Bus————————
21RS232 Receive————————
22RS232 Transmit————————
23Digital Input 1—W54—0.5OEM-1-E———
24Battery Negative 3—W9—0.85SP-GND-1———
25Battery Negative 4—W10—0.85SP-GND-1———
26Sensor 0V C1—W17—0.5SP-0V-1———
27Sensor 0V C2—W18—0.5SP-0V-1———
28CAN Bus 3 High————————
29CAN Bus 3 Low————————
3Analogue Voltage Input 15————————
30CAN Bus 2 High————————
31CAN Bus 2 Low————————
32Battery Negative 5—W11—0.85SP-GND-1———
33Sensor 0V B1—W19—0.5SP-0V-1———
34Sensor 0V A1—W20—0.5SP-0V-1———
4Analogue Voltage Input 16————————
5Analogue Voltage Input 17————————
6Low Side Ignition 9————————
7Low Side Ignition 10————————
8Low Side Ignition 11————————
9Low Side Ignition 12————————

M150-B

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Half Bridge Output 9————————
10Analogue Voltage Input 9————————
11Analogue Voltage Input 10————————
12Analogue Voltage Input 11————————
13Battery Positive—W2—0.85SP-14V-1———
14Low Side Injector 6—W37—0.5OEM-1-S———
15Low Side Injector 4—W35—0.5OEM-3-D———
16Analogue Voltage Input 12————————
17Analogue Voltage Input 13————————
18Analogue Voltage Input 14————————
19Battery Positive—W3—0.85SP-14V-1———
2Half Bridge Output 10————————
20Half Bridge Output 7————————
21Half Bridge Output 8————————
22Peak Hold Injector 9————————
23Peak Hold Injector 10————————
24Peak Hold Injector 11————————
25Peak Hold Injector 12————————
26Sensor 5.0V A————————
3Universal Digital Input 8————————
4Universal Digital Input 9————————
5Universal Digital Input 10————————
6Universal Digital Input 11————————
7Universal Digital Input 12————————
8Low Side Injector 5—W36—0.5OEM-1-C———
9Low Side Injector 3—W34—0.5OEM-1-F———

M150-C

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Half Bridge Output 2————————
10Battery Negative 1—W12—0.85SP-GND-1———
11Battery Negative 2—W13—0.85SP-GND-1———
12Low Side Ignition 7————————
13Low Side Ignition 8————————
14Analogue Voltage Input 1—W44—0.5OEM-2-E———
15Analogue Voltage Input 2—W45—0.5OEM-2-B———
16Analogue Voltage Input 3—W46—0.5OEM-2-G———
17Analogue Voltage Input 4—W51—0.5OEM-2-F———
18Half Bridge Output 1————————
19Peak Hold Injector 1—W30—0.5OEM-3-E———
2Sensor 5.0V A————————
20Peak Hold Injector 2—W32—0.5OEM-3-C———
21Peak Hold Injector 3—W38—0.5OEM-2-K———
22Peak Hold Injector 4—W39—0.5OEM-2-M———
23Low Side Injector 1—W31—0.5OEM-3-H———
24Low Side Injector 2—W33—0.5OEM-3-F———
25Analogue Voltage Input 5—W52—0.5OEM-2-H———
26Battery Positive—W4—0.85SP-14V-1———
27Peak Hold Injector 5—W40—0.5OEM-2-N———
28Peak Hold Injector 6—W41—0.5OEM-2-O———
29Peak Hold Injector 7—W42—0.5OEM-2-P———
3Low Side Ignition 1—W27—0.5OEM-1-U———
30Peak Hold Injector 8—W43—0.5OEM-2-Q———
31Half Bridge Output 3————————
32Half Bridge Output 4————————
33Half Bridge Output 5————————
34Half Bridge Output 6————————
4Low Side Ignition 2—W28—0.5OEM-1-V———
5Low Side Ignition 3—W29—0.5OEM-1-X———
6Low Side Ignition 4————————
7Low Side Ignition 5————————
8Low Side Ignition 6————————
9Sensor 5.0V B————————

M150-D

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Universal Digital Input 1—W24—0.5OEM-1-T———
10Universal Digital Input 5————————
11Universal Digital Input 6————————
12Battery Backup—W5—0.85OEM-3-J———
13Knock Input 2————————
14Universal Digital Input 7————————
15Sensor 0V A—W21—0.5SP-0V-1———
16Sensor 0V B—W22—0.5SP-0V-1———
17CAN Bus 1 High————————
18CAN Bus 1 Low————————
19Sensor 6.3V————————
2Universal Digital Input 2—W25—0.5OEM-1-N———
20Analogue Voltage Input 6————————
21Analogue Voltage Input 7————————
22Analogue Voltage Input 8————————
23Ethernet Transmit +————————
24Ethernet Transmit -————————
25Ethernet Receive +————————
26Ethernet Receive -————————
3Analogue Temperature Input 1—W48—0.5OEM-2-I———
4Analogue Temperature Input 2—W49—0.5OEM-2-J———
5Analogue Temperature Input 3—W50—0.5OEM-2-L———
6Analogue Temperature Input 4————————
7Knock Input 1—W26—0.5OEM-1-R———
8Universal Digital Input 3—W53—0.5OEM-1-O———
9Universal Digital Input 4—W58—0.5OEM-3-B———

OEM-1

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
CAir bypass solenoid—W36—0.5M150-B-8———
EA/C request—W54—0.5M150-A-23———
FA/C clutch relay—W34—0.5M150-B-9———
GNeutral switch—W55—0.5M150-A-15———
HWater temperature switch—W56—0.5M150-A-16———
LClutch switch—W57—0.5M150-A-17———
MIgnition feedback (tacho)————————
NCAS 2-tooth (G, cam)—W25—0.5M150-D-2———
OVehicle speed (mileage sensor)—W53—0.5M150-D-8———
PCAS ground—W14—0.5SP-0V-1———
QCAS ground—W15—0.5SP-0V-1———
RKnock input—W26—0.5M150-D-7———
SPort air valve—W37—0.5M150-B-14———
TCAS 24-tooth (NE, crank)—W24—0.5M150-D-1———
UIgnition select (trailing rotor)—W27—0.5M150-C-3———
VIgnition leading—W28—0.5M150-C-4———
XIgnition trailing—W29—0.5M150-C-5———

OEM-2

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
A5V sensor supply—W23—0.5M150-A-10———
BMAP (pressure) signal—W45—0.5M150-C-15———
CSensor ground—W16—0.5SP-0V-1———
DO2 sensor signal—W47—0.5M150-A-11———
EAirflow signal (AFM)—W44—0.5M150-C-14———
FVariable resistor (tuning)—W51—0.5M150-C-17———
GThrottle position (TPS)—W46—0.5M150-C-16———
HAtmospheric pressure (ATP)—W52—0.5M150-C-25———
ICoolant temperature (ECT)—W48—0.5M150-D-3———
JInlet air temperature (IAT)—W49—0.5M150-D-4———
KTurbo control valve (boost)—W38—0.5M150-C-21———
LManifold air temperature (MAT)—W50—0.5M150-D-5———
MPressure regulator control valve—W39—0.5M150-C-22———
NEGR valve—W40—0.5M150-C-27———
OSwitching valve—W41—0.5M150-C-28———
PRelief valve—W42—0.5M150-C-29———
QIdle control (BAC)—W43—0.5M150-C-30———
RPower ground—W6—0.85SP-GND-1———

OEM-3

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
APower ground—W7—0.85SP-GND-1———
BStarter input—W58—0.5M150-D-9———
CPrimary injector 2—W32—0.5M150-C-20———
DStarter inhibit / fuel pump control—W35—0.5M150-B-15———
EPrimary injector 1—W30—0.5M150-C-19———
FSecondary injector 2—W33—0.5M150-C-24———
GPower ground—W8—0.85SP-GND-1———
HSecondary injector 1—W31—0.5M150-C-23———
IIgnition power (+12V via main relay)—W1—0.85SP-14V-1———
JBattery constant (+12V)—W5—0.85M150-D-12———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W14—0.5OEM-1-P———
1——W15—0.5OEM-1-Q———
1——W16—0.5OEM-2-C———
1——W17—0.5M150-A-26———
1——W18—0.5M150-A-27———
1——W19—0.5M150-A-33———
1——W20—0.5M150-A-34———
1——W21—0.5M150-D-15———
1——W22—0.5M150-D-16———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-3-I———
1——W2—0.85M150-B-13———
1——W3—0.85M150-B-19———
1——W4—0.85M150-C-26———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W6—0.85OEM-2-R———
1——W7—0.85OEM-3-A———
1——W8—0.85OEM-3-G———
1——W9—0.85M150-A-24———
1——W10—0.85M150-A-25———
1——W11—0.85M150-A-32———
1——W12—0.85M150-C-10———
1——W13—0.85M150-C-11———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-1-CAir bypass solenoidlow_side_outM150-B-8Low Side Injector 5injector_outsingle_source
OEM-1-EA/C requestdigital_inM150-A-23Digital Input 1digital_insingle_source
OEM-1-FA/C clutch relaylow_side_outM150-B-9Low Side Injector 3injector_outsingle_source
OEM-1-GNeutral switchdigital_inM150-A-15Digital Input 2digital_incorroborated
OEM-1-HWater temperature switchdigital_inM150-A-16Digital Input 3digital_incorroborated
OEM-1-LClutch switchdigital_inM150-A-17Digital Input 4digital_insingle_source
OEM-1-MIgnition feedback (tacho)tacho_out———single_source
OEM-1-NCAS 2-tooth (G, cam)trigger_inM150-D-2Universal Digital Input 2digital_incorroborated
OEM-1-OVehicle speed (mileage sensor)digital_inM150-D-8Universal Digital Input 3digital_insingle_source
OEM-1-PCAS groundsensor_groundM150-A-26 + M150-A-27 + M150-A-33 + M150-A-34 + M150-D-15 + M150-D-16Sensor 0V C1 + Sensor 0V C2 + Sensor 0V B1 + Sensor 0V A1 + Sensor 0V A + Sensor 0V Bsensor_groundcorroborated
OEM-1-QCAS groundsensor_groundM150-A-26 + M150-A-27 + M150-A-33 + M150-A-34 + M150-D-15 + M150-D-16Sensor 0V C1 + Sensor 0V C2 + Sensor 0V B1 + Sensor 0V A1 + Sensor 0V A + Sensor 0V Bsensor_groundcorroborated
OEM-1-RKnock inputknock_inM150-D-7Knock Input 1knock_incorroborated
OEM-1-SPort air valvelow_side_outM150-B-14Low Side Injector 6injector_outsingle_source
OEM-1-TCAS 24-tooth (NE, crank)trigger_inM150-D-1Universal Digital Input 1digital_incorroborated
OEM-1-UIgnition select (trailing rotor)ignition_outM150-C-3Low Side Ignition 1ignition_outcorroborated
OEM-1-VIgnition leadingignition_outM150-C-4Low Side Ignition 2ignition_outcorroborated
OEM-1-XIgnition trailingignition_outM150-C-5Low Side Ignition 3ignition_outsingle_source
OEM-2-A5V sensor supplyvrefM150-A-10Sensor 5.0V C1vrefsingle_source
OEM-2-BMAP (pressure) signalanalog_inM150-C-15Analogue Voltage Input 2analog_insingle_source
OEM-2-CSensor groundsensor_groundM150-A-26 + M150-A-27 + M150-A-33 + M150-A-34 + M150-D-15 + M150-D-16Sensor 0V C1 + Sensor 0V C2 + Sensor 0V B1 + Sensor 0V A1 + Sensor 0V A + Sensor 0V Bsensor_groundsingle_source
OEM-2-DO2 sensor signallambda_nb_inM150-A-11Lambda Narrow Input 1lambda_nb_insingle_source
OEM-2-EAirflow signal (AFM)analog_inM150-C-14Analogue Voltage Input 1analog_insingle_source
OEM-2-FVariable resistor (tuning)analog_inM150-C-17Analogue Voltage Input 4analog_insingle_source
OEM-2-GThrottle position (TPS)analog_inM150-C-16Analogue Voltage Input 3analog_insingle_source
OEM-2-HAtmospheric pressure (ATP)analog_inM150-C-25Analogue Voltage Input 5analog_insingle_source
OEM-2-ICoolant temperature (ECT)temp_inM150-D-3Analogue Temperature Input 1temp_insingle_source
OEM-2-JInlet air temperature (IAT)temp_inM150-D-4Analogue Temperature Input 2temp_insingle_source
OEM-2-KTurbo control valve (boost)low_side_outM150-C-21Peak Hold Injector 3injector_outsingle_source
OEM-2-LManifold air temperature (MAT)temp_inM150-D-5Analogue Temperature Input 3temp_insingle_source
OEM-2-MPressure regulator control valvelow_side_outM150-C-22Peak Hold Injector 4injector_outsingle_source
OEM-2-NEGR valvelow_side_outM150-C-27Peak Hold Injector 5injector_outsingle_source
OEM-2-OSwitching valvelow_side_outM150-C-28Peak Hold Injector 6injector_outsingle_source
OEM-2-PRelief valvelow_side_outM150-C-29Peak Hold Injector 7injector_outsingle_source
OEM-2-QIdle control (BAC)low_side_outM150-C-30Peak Hold Injector 8injector_outsingle_source
OEM-2-RPower groundgroundM150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2groundsingle_source
OEM-3-APower groundgroundM150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2groundsingle_source
OEM-3-BStarter inputdigital_inM150-D-9Universal Digital Input 4digital_insingle_source
OEM-3-CPrimary injector 2injector_outM150-C-20Peak Hold Injector 2injector_outsingle_source
OEM-3-DStarter inhibit / fuel pump controllow_side_outM150-B-15Low Side Injector 4injector_outsingle_source
OEM-3-EPrimary injector 1injector_outM150-C-19Peak Hold Injector 1injector_outsingle_source
OEM-3-FSecondary injector 2injector_outM150-C-24Low Side Injector 2injector_outsingle_source
OEM-3-GPower groundgroundM150-A-24 + M150-A-25 + M150-A-32 + M150-C-10 + M150-C-11Battery Negative 3 + Battery Negative 4 + Battery Negative 5 + Battery Negative 1 + Battery Negative 2groundsingle_source
OEM-3-HSecondary injector 1injector_outM150-C-23Low Side Injector 1injector_outsingle_source
OEM-3-IIgnition power (+12V via main relay)power_inM150-B-13 + M150-B-19 + M150-C-26Battery Positive + Battery Positive + Battery Positivepower_insingle_source
OEM-3-JBattery constant (+12V)power_inM150-D-12Battery Backuppower_insingle_source

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-3-ISP-14V-10.85no routeIgnition power (+12V via main relay)—
W2SP-14V-1M150-B-130.85no routeBattery Positive—
W3SP-14V-1M150-B-190.85no routeBattery Positive—
W4SP-14V-1M150-C-260.85no routeBattery Positive—
W5OEM-3-JM150-D-120.85no routeBattery constant (+12V)—
W6OEM-2-RSP-GND-10.85no routePower ground—
W7OEM-3-ASP-GND-10.85no routePower ground—
W8OEM-3-GSP-GND-10.85no routePower ground—
W9SP-GND-1M150-A-240.85no routeBattery Negative 3—
W10SP-GND-1M150-A-250.85no routeBattery Negative 4—
W11SP-GND-1M150-A-320.85no routeBattery Negative 5—
W12SP-GND-1M150-C-100.85no routeBattery Negative 1—
W13SP-GND-1M150-C-110.85no routeBattery Negative 2—
W14OEM-1-PSP-0V-10.5no routeCAS ground—
W15OEM-1-QSP-0V-10.5no routeCAS ground—
W16OEM-2-CSP-0V-10.5no routeSensor ground—
W17SP-0V-1M150-A-260.5no routeSensor 0V C1—
W18SP-0V-1M150-A-270.5no routeSensor 0V C2—
W19SP-0V-1M150-A-330.5no routeSensor 0V B1—
W20SP-0V-1M150-A-340.5no routeSensor 0V A1—
W21SP-0V-1M150-D-150.5no routeSensor 0V A—
W22SP-0V-1M150-D-160.5no routeSensor 0V B—
W23OEM-2-AM150-A-100.5no route5V sensor supply—
W24OEM-1-TM150-D-10.5no routeCAS 24-tooth (NE, crank)—
W25OEM-1-NM150-D-20.5no routeCAS 2-tooth (G, cam)—
W26OEM-1-RM150-D-70.5no routeKnock input—
W27OEM-1-UM150-C-30.5no routeIgnition select (trailing rotor)—
W28OEM-1-VM150-C-40.5no routeIgnition leading—
W29OEM-1-XM150-C-50.5no routeIgnition trailing—
W30OEM-3-EM150-C-190.5no routePrimary injector 1—
W31OEM-3-HM150-C-230.5no routeSecondary injector 1—
W32OEM-3-CM150-C-200.5no routePrimary injector 2—
W33OEM-3-FM150-C-240.5no routeSecondary injector 2—
W34OEM-1-FM150-B-90.5no routeA/C clutch relay—
W35OEM-3-DM150-B-150.5no routeStarter inhibit / fuel pump control—
W36OEM-1-CM150-B-80.5no routeAir bypass solenoid—
W37OEM-1-SM150-B-140.5no routePort air valve—
W38OEM-2-KM150-C-210.5no routeTurbo control valve (boost)—
W39OEM-2-MM150-C-220.5no routePressure regulator control valve—
W40OEM-2-NM150-C-270.5no routeEGR valve—
W41OEM-2-OM150-C-280.5no routeSwitching valve—
W42OEM-2-PM150-C-290.5no routeRelief valve—
W43OEM-2-QM150-C-300.5no routeIdle control (BAC)—
W44OEM-2-EM150-C-140.5no routeAirflow signal (AFM)—
W45OEM-2-BM150-C-150.5no routeMAP (pressure) signal—
W46OEM-2-GM150-C-160.5no routeThrottle position (TPS)—
W47OEM-2-DM150-A-110.5no routeO2 sensor signal—
W48OEM-2-IM150-D-30.5no routeCoolant temperature (ECT)—
W49OEM-2-JM150-D-40.5no routeInlet air temperature (IAT)—
W50OEM-2-LM150-D-50.5no routeManifold air temperature (MAT)—
W51OEM-2-FM150-C-170.5no routeVariable resistor (tuning)—
W52OEM-2-HM150-C-250.5no routeAtmospheric pressure (ATP)—
W53OEM-1-OM150-D-80.5no routeVehicle speed (mileage sensor)—
W54OEM-1-EM150-A-230.5no routeA/C request—
W55OEM-1-GM150-A-150.5no routeNeutral switch—
W56OEM-1-HM150-A-160.5no routeWater temperature switch—
W57OEM-1-LM150-A-170.5no routeClutch switch—
W58OEM-3-BM150-D-90.5no 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 ↔ M150-D-2OEM-1-N "CAS 2-tooth (G, cam)" [trigger_in] is wired to M150-D-2 "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 ↔ M150-D-1OEM-1-T "CAS 24-tooth (NE, crank)" [trigger_in] is wired to M150-D-1 "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 ↔ M150-B-8OEM-1-C "Air bypass solenoid" [low_side_out] is wired to M150-B-8 "Low Side Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-1-F ↔ M150-B-9OEM-1-F "A/C clutch relay" [low_side_out] is wired to M150-B-9 "Low Side Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-1-S ↔ M150-B-14OEM-1-S "Port air valve" [low_side_out] is wired to M150-B-14 "Low Side Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-2-K ↔ M150-C-21OEM-2-K "Turbo control valve (boost)" [low_side_out] is wired to M150-C-21 "Peak Hold Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-2-M ↔ M150-C-22OEM-2-M "Pressure regulator control valve" [low_side_out] is wired to M150-C-22 "Peak Hold Injector 4" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-2-N ↔ M150-C-27OEM-2-N "EGR valve" [low_side_out] is wired to M150-C-27 "Peak Hold Injector 5" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-2-O ↔ M150-C-28OEM-2-O "Switching valve" [low_side_out] is wired to M150-C-28 "Peak Hold Injector 6" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-2-P ↔ M150-C-29OEM-2-P "Relief valve" [low_side_out] is wired to M150-C-29 "Peak Hold Injector 7" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-2-Q ↔ M150-C-30OEM-2-Q "Idle control (BAC)" [low_side_out] is wired to M150-C-30 "Peak Hold Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-3-D ↔ M150-B-15OEM-3-D "Starter inhibit / fuel pump control" [low_side_out] is wired to M150-B-15 "Low Side Injector 4" [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 M150

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/———