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MX-5 Miata NB2 2001-05 (BP-Z3, VVT) → MoTeC M190 13190 (auto)

MX-5 Miata NB2 2001-05 (BP-Z3, VVT) — 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 job68 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-2-PSP-14V-10.85☐☐☐☐☐☐☐
W2OEM-4-AFSP-14V-10.85☐☐☐☐☐☐☐
W3SP-14V-1M190-B-H0.85☐☐☐☐☐☐☐
W4SP-14V-1M190-B-J0.85☐☐☐☐☐☐☐
W5SP-14V-1M190-B-K0.85☐☐☐☐☐☐☐
W6SP-14V-1M190-B-L0.85☐☐☐☐☐☐☐
W7OEM-4-AGM190-A-380.85☐☐☐☐☐☐☐
W8OEM-3-ASP-GND-10.85☐☐☐☐☐☐☐
W9OEM-3-BSP-GND-10.85☐☐☐☐☐☐☐
W10OEM-4-ASP-GND-10.85☐☐☐☐☐☐☐
W11SP-GND-1M190-B-G0.85☐☐☐☐☐☐☐
W12SP-GND-1M190-B-W0.85☐☐☐☐☐☐☐
W13SP-GND-1M190-B-X0.85☐☐☐☐☐☐☐
W14SP-GND-1M190-B-Y0.85☐☐☐☐☐☐☐
W15SP-GND-1M190-B-Z0.85☐☐☐☐☐☐☐
W16SP-GND-1M190-B-c0.85☐☐☐☐☐☐☐
W17OEM-4-OSP-0V-10.5☐☐☐☐☐☐☐
W18SP-0V-1M190-A-180.5☐☐☐☐☐☐☐
W19SP-0V-1M190-A-190.5☐☐☐☐☐☐☐
W20SP-0V-1M190-A-200.5☐☐☐☐☐☐☐
W21SP-0V-1M190-C-140.5☐☐☐☐☐☐☐
W22SP-0V-1M190-C-150.5☐☐☐☐☐☐☐
W23SP-0V-1M190-C-230.5☐☐☐☐☐☐☐
W24SP-0V-1M190-C-300.5☐☐☐☐☐☐☐
W25OEM-4-LM190-A-160.5☐☐☐☐☐☐☐
W26OEM-3-YM190-C-180.5☐☐☐☐☐☐☐
W27OEM-3-VM190-C-320.5☐☐☐☐☐☐☐
W28OEM-4-MM190-C-510.5☐☐☐☐☐☐☐
W29OEM-3-FM190-C-160.5☐☐☐☐☐☐☐
W30OEM-3-IM190-C-80.5☐☐☐☐☐☐☐
W31OEM-2-AM190-A-110.5☐☐☐☐☐☐☐
W32OEM-2-DM190-A-30.5☐☐☐☐☐☐☐
W33OEM-2-GM190-B-U0.5☐☐☐☐☐☐☐
W34OEM-2-JM190-A-120.5☐☐☐☐☐☐☐
W35OEM-2-BM190-A-20.5☐☐☐☐☐☐☐
W36OEM-2-CM190-B-V0.5☐☐☐☐☐☐☐
W37OEM-2-KM190-A-10.5☐☐☐☐☐☐☐
W38OEM-2-MM190-B-b0.5☐☐☐☐☐☐☐
W39OEM-3-HM190-A-50.5☐☐☐☐☐☐☐
W40OEM-3-JM190-B-A0.5☐☐☐☐☐☐☐
W41OEM-3-PM190-B-B0.5☐☐☐☐☐☐☐
W42OEM-2-QM190-B-S0.5☐☐☐☐☐☐☐
W43OEM-2-EM190-A-480.5☐☐☐☐☐☐☐
W44OEM-2-FM190-B-a0.5☐☐☐☐☐☐☐
W45OEM-2-HM190-A-400.5☐☐☐☐☐☐☐
W46OEM-2-IM190-B-T0.5☐☐☐☐☐☐☐
W47OEM-2-NM190-A-250.5☐☐☐☐☐☐☐
W48OEM-2-RM190-A-100.5☐☐☐☐☐☐☐
W49OEM-3-DM190-A-470.5☐☐☐☐☐☐☐
W50OEM-3-EM190-A-320.5☐☐☐☐☐☐☐
W51OEM-3-MM190-A-170.5☐☐☐☐☐☐☐
W52OEM-3-UM190-A-40.5☐☐☐☐☐☐☐
W53OEM-4-DM190-A-260.5☐☐☐☐☐☐☐
W54OEM-4-XM190-C-420.5☐☐☐☐☐☐☐
W55OEM-4-VM190-C-360.5☐☐☐☐☐☐☐
W56OEM-4-AAM190-A-70.5☐☐☐☐☐☐☐
W57OEM-4-WM190-A-60.5☐☐☐☐☐☐☐
W58OEM-4-PM190-C-370.5☐☐☐☐☐☐☐
W59OEM-4-NM190-C-390.5☐☐☐☐☐☐☐
W60OEM-4-ADM190-C-350.5☐☐☐☐☐☐☐
W61OEM-3-TM190-C-250.5☐☐☐☐☐☐☐
W62OEM-3-SM190-A-210.5☐☐☐☐☐☐☐
W63OEM-4-BM190-A-140.5☐☐☐☐☐☐☐
W64OEM-4-CM190-A-300.5☐☐☐☐☐☐☐
W65OEM-4-FM190-A-370.5☐☐☐☐☐☐☐
W66OEM-4-HM190-C-270.5☐☐☐☐☐☐☐
W67OEM-4-IM190-C-400.5☐☐☐☐☐☐☐
W68OEM-4-JM190-C-470.5☐☐☐☐☐☐☐

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-A-18open (OL)5 V sensor reference must not touch sensor ground
2M190-A-38M190-A-18open (OL)+12 V supply must not touch sensor ground
3M190-B-HM190-A-18open (OL)+12 V supply must not touch sensor ground
4M190-B-HM190-B-Gopen (OL)+12 V supply must not touch power ground
5M190-A-38M190-A-16open (OL)+12 V supply must not touch 5 V sensor reference
6M190-B-GM190-A-16open (OL)power ground must not touch 5 V sensor reference
7M190-B-GM190-A-38open (OL)power ground must not touch +12 V supply
8M190-B-HM190-A-16open (OL)+12 V supply must not touch 5 V sensor reference

Revisions

RevLabelByDate
No revisions yet.

Schematic

M190-AM190-BM190-COEM-2OEM-3OEM-4SP-0VSP-14VSP-GND

Connectors

M190-A

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1Low Side Injector 3—W37—0.5OEM-2-K———
10Low Side Injector 8—W48—0.5OEM-2-R———
11Peak Hold Injector 1—W31—0.5OEM-2-A———
12Peak Hold Injector 2—W34—0.5OEM-2-J———
13Analogue Voltage Input 11————————
14Digital Input 2—W63—0.5OEM-4-B———
15RS232 Receive————————
16Sensor 5.0V C3—W25—0.5OEM-4-L———
17Low Side Injector 11—W51—0.5OEM-3-M———
18Sensor 0V C1—W18—0.5SP-0V-1———
19Sensor 0V C2—W19—0.5SP-0V-1———
2Low Side Injector 2—W35—0.5OEM-2-B———
20Sensor 0V C3—W20—0.5SP-0V-1———
21Digital Input 1—W62—0.5OEM-3-S———
22LIN Bus————————
23RS232 Transmit————————
24CAN Bus 2 High————————
25Low Side Injector 7—W47—0.5OEM-2-N———
26Peak Hold Injector 3—W53—0.5OEM-4-D———
27Analogue Voltage Input 15————————
28Analogue Voltage Input 16————————
29Analogue Voltage Input 17————————
3Low Side Injector 1—W32—0.5OEM-2-D———
30Digital Input 3—W64—0.5OEM-4-C———
31CAN Bus 2 Low————————
32Low Side Injector 10—W50—0.5OEM-3-E———
33Peak Hold Injector 4————————
34Analogue Voltage Input 13————————
35Analogue Voltage Input 12————————
36Peak Hold Injector 7————————
37Digital Input 4—W65—0.5OEM-4-F———
38Battery Backup—W7—0.85OEM-4-AG———
39CAN Bus 3 High————————
4Low Side Injector 12—W52—0.5OEM-3-U———
40Low Side Injector 6—W45—0.5OEM-2-H———
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—W49—0.5OEM-3-D———
48Low Side Injector 5—W43—0.5OEM-2-E———
49Peak Hold Injector 11————————
5Low Side Injector 4—W39—0.5OEM-3-H———
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—W57—0.5OEM-4-W———
7Lambda Narrow Input 1—W56—0.5OEM-4-AA———
8Sensor 5.0V C1————————
9Sensor 5.0V C2————————

M190-B

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
AHalf Bridge Output 1—W40—0.5OEM-3-J———
BHalf Bridge Output 2—W41—0.5OEM-3-P———
CHalf Bridge Output 3————————
DHalf Bridge Output 4————————
EHalf Bridge Output 5————————
FHalf Bridge Output 6————————
GBattery Negative 1—W11—0.85SP-GND-1———
HBattery Positive 1—W3—0.85SP-14V-1———
JBattery Positive 2—W4—0.85SP-14V-1———
KBattery Positive 3—W5—0.85SP-14V-1———
LBattery Positive 4—W6—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-Q———
TLow Side Injector 6—W46—0.5OEM-2-I———
ULow Side Injector 1—W33—0.5OEM-2-G———
VLow Side Injector 2—W36—0.5OEM-2-C———
WBattery Negative 2—W12—0.85SP-GND-1———
XBattery Negative 3—W13—0.85SP-GND-1———
YBattery Negative 4—W14—0.85SP-GND-1———
ZBattery Negative 5—W15—0.85SP-GND-1———
aLow Side Injector 5—W44—0.5OEM-2-F———
bLow Side Injector 3—W38—0.5OEM-2-M———
cBattery Negative 6—W16—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—W21—0.5SP-0V-1———
15Sensor 0V A2—W22—0.5SP-0V-1———
16Low Side Ignition 1—W29—0.5OEM-3-F———
17Universal Digital Input 7————————
18Universal Digital Input 1—W26—0.5OEM-3-Y———
19Universal Digital Input 12————————
2Low Side Ignition 3————————
20Universal Digital Input 11————————
21Universal Digital Input 10————————
22Universal Digital Input 9————————
23Sensor 0V B1—W23—0.5SP-0V-1———
24CAN Bus 1 High————————
25Universal Digital Input 3—W61—0.5OEM-3-T———
26Ethernet Receive -————————
27Universal Digital Input 4—W66—0.5OEM-4-H———
28Analogue Voltage Input 4————————
29Analogue Voltage Input 5————————
3Low Side Ignition 8————————
30Sensor 0V B2—W24—0.5SP-0V-1———
31CAN Bus 1 Low————————
32Universal Digital Input 2—W27—0.5OEM-3-V———
33Ethernet Receive +————————
34Ethernet Transmit -————————
35Analogue Voltage Input 3—W60—0.5OEM-4-AD———
36Analogue Voltage Input 2—W55—0.5OEM-4-V———
37Analogue Temperature Input 1—W58—0.5OEM-4-P———
38Analogue Temperature Input 3————————
39Analogue Temperature Input 2—W59—0.5OEM-4-N———
4Low Side Ignition 6————————
40Universal Digital Input 5—W67—0.5OEM-4-I———
41Ethernet Transmit +————————
42Analogue Voltage Input 1—W54—0.5OEM-4-X———
43Knock Input 3————————
44Knock Input 2————————
45Analogue Temperature Input 5————————
46Analogue Temperature Input 4————————
47Universal Digital Input 6—W68—0.5OEM-4-J———
48Sensor 5.0V A1————————
49Knock Input 4————————
5Low Side Ignition 5————————
50Sensor 5.0V B1————————
51Knock Input 1—W28—0.5OEM-4-M———
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—W30—0.5OEM-3-I———
9Low Side Ignition 7————————

OEM-2

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
AInjector 1—W31—0.5M190-A-11———
BCooling fan relay—W35—0.5M190-A-2———
CCondenser fan relay—W36—0.5M190-B-V———
DInjector 2—W32—0.5M190-A-3———
EEGR valve—W43—0.5M190-A-48———
FEGR valve—W44—0.5M190-B-a———
GInjector 3—W33—0.5M190-B-U———
HEGR valve—W45—0.5M190-A-40———
IEGR valve—W46—0.5M190-B-T———
JInjector 4—W34—0.5M190-A-12———
KA/C clutch relay—W37—0.5M190-A-1———
MFuel pump relay—W38—0.5M190-B-b———
NVTCS solenoid (intake butterflies)—W47—0.5M190-A-25———
PISC valve +14V feed—W1—0.85SP-14V-1———
QISC valve low side—W42—0.5M190-B-S———
RMalfunction indicator lamp (MIL)—W48—0.5M190-A-10———

OEM-3

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
APower ground—W8—0.85SP-GND-1———
BPower ground—W9—0.85SP-GND-1———
DEGR boost solenoid—W49—0.5M190-A-47———
ECharcoal canister purge—W50—0.5M190-A-32———
FIgnition 1 (coils 1+4, wasted spark)—W29—0.5M190-C-16———
HMain relay—W39—0.5M190-A-5———
IIgnition 2 (coils 2+3, wasted spark)—W30—0.5M190-C-8———
JFront O2 heater—W40—0.5M190-B-A———
MAlternator control—W51—0.5M190-A-17———
OTachometer output————————
PRear O2 heater—W41—0.5M190-B-B———
SImmobiliser—W62—0.5M190-A-21———
TVehicle speed—W61—0.5M190-C-25———
UCharge lamp—W52—0.5M190-A-4———
VCam position (CMP)—W27—0.5M190-C-32———
YCrank position (CKP)—W26—0.5M190-C-18———

OEM-4

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
APower ground—W10—0.85SP-GND-1———
AARear O2 signal—W56—0.5M190-A-7———
ADFuel level—W60—0.5M190-C-35———
AFECU power +14V (main relay)—W2—0.85SP-14V-1———
AGConstant +12V—W7—0.85M190-A-38———
BBrake switch—W63—0.5M190-A-14———
CPower steering pressure switch—W64—0.5M190-A-30———
DVVT oil-control solenoid—W53—0.5M190-A-26———
FA/C request—W65—0.5M190-A-37———
HNeutral switch—W66—0.5M190-C-27———
IClutch switch—W67—0.5M190-C-40———
JVTCS vacuum switch—W68—0.5M190-C-47———
L+5V sensor supply—W25—0.5M190-A-16———
MKnock sensor—W28—0.5M190-C-51———
NIntake air temperature (IAT)—W59—0.5M190-C-39———
OSignal ground—W17—0.5SP-0V-1———
PCoolant temperature (ECT)—W58—0.5M190-C-37———
VThrottle position (TPS)—W55—0.5M190-C-36———
WFront O2 signal—W57—0.5M190-A-6———
XMass air flow (MAF)—W54—0.5M190-C-42———

SP-0V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W17—0.5OEM-4-O———
1——W18—0.5M190-A-18———
1——W19—0.5M190-A-19———
1——W20—0.5M190-A-20———
1——W21—0.5M190-C-14———
1——W22—0.5M190-C-15———
1——W23—0.5M190-C-23———
1——W24—0.5M190-C-30———

SP-14V

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W1—0.85OEM-2-P———
1——W2—0.85OEM-4-AF———
1——W3—0.85M190-B-H———
1——W4—0.85M190-B-J———
1——W5—0.85M190-B-K———
1——W6—0.85M190-B-L———

SP-GND

CavityFunctionSignalWireColourGauge (mm²)DestinationTerminalSealPlug
1——W8—0.85OEM-3-A———
1——W9—0.85OEM-3-B———
1——W10—0.85OEM-4-A———
1——W11—0.85M190-B-G———
1——W12—0.85M190-B-W———
1——W13—0.85M190-B-X———
1——W14—0.85M190-B-Y———
1——W15—0.85M190-B-Z———
1——W16—0.85M190-B-c———

Pin map

OEM pointOEM functionOEM familyTarget pointTarget functionTarget familyWire colourEvidence
OEM-2-AInjector 1injector_outM190-A-11Peak Hold Injector 1injector_outsingle_source
OEM-2-BCooling fan relaylow_side_outM190-A-2Low Side Injector 2injector_outsingle_source
OEM-2-CCondenser fan relaylow_side_outM190-B-VLow Side Injector 2injector_outsingle_source
OEM-2-DInjector 2injector_outM190-A-3Low Side Injector 1injector_outsingle_source
OEM-2-EEGR valvelow_side_outM190-A-48Low Side Injector 5injector_outsingle_source
OEM-2-FEGR valvelow_side_outM190-B-aLow Side Injector 5injector_outsingle_source
OEM-2-GInjector 3injector_outM190-B-ULow Side Injector 1injector_outsingle_source
OEM-2-HEGR valvelow_side_outM190-A-40Low Side Injector 6injector_outsingle_source
OEM-2-IEGR valvelow_side_outM190-B-TLow Side Injector 6injector_outsingle_source
OEM-2-JInjector 4injector_outM190-A-12Peak Hold Injector 2injector_outsingle_source
OEM-2-KA/C clutch relaylow_side_outM190-A-1Low Side Injector 3injector_outsingle_source
OEM-2-MFuel pump relaylow_side_outM190-B-bLow Side Injector 3injector_outsingle_source
OEM-2-NVTCS solenoid (intake butterflies)low_side_outM190-A-25Low Side Injector 7injector_outsingle_source
OEM-2-PISC valve +14V feedpower_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-2-QISC valve low sidelow_side_outM190-B-SLow Side Injector 4injector_outsingle_source
OEM-2-RMalfunction indicator lamp (MIL)low_side_outM190-A-10Low Side Injector 8injector_outsingle_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-BPower 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-DEGR boost solenoidlow_side_outM190-A-47Low Side Injector 9injector_outsingle_source
OEM-3-ECharcoal canister purgelow_side_outM190-A-32Low Side Injector 10injector_outsingle_source
OEM-3-FIgnition 1 (coils 1+4, wasted spark)ignition_outM190-C-16Low Side Ignition 1ignition_outsingle_source
OEM-3-HMain relaylow_side_outM190-A-5Low Side Injector 4injector_outsingle_source
OEM-3-IIgnition 2 (coils 2+3, wasted spark)ignition_outM190-C-8Low Side Ignition 2ignition_outsingle_source
OEM-3-JFront O2 heaterlow_side_outM190-B-AHalf Bridge Output 1hbridge_outsingle_source
OEM-3-MAlternator controllow_side_outM190-A-17Low Side Injector 11injector_outsingle_source
OEM-3-OTachometer outputtacho_out———single_source
OEM-3-PRear O2 heaterlow_side_outM190-B-BHalf Bridge Output 2hbridge_outsingle_source
OEM-3-SImmobiliserdigital_inM190-A-21Digital Input 1digital_insingle_source
OEM-3-TVehicle speeddigital_inM190-C-25Universal Digital Input 3digital_insingle_source
OEM-3-UCharge lamplow_side_outM190-A-4Low Side Injector 12injector_outsingle_source
OEM-3-VCam position (CMP)trigger_inM190-C-32Universal Digital Input 2digital_insingle_source
OEM-3-YCrank position (CKP)trigger_inM190-C-18Universal Digital Input 1digital_insingle_source
OEM-4-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-4-AARear O2 signallambda_nb_inM190-A-7Lambda Narrow Input 1lambda_nb_insingle_source
OEM-4-ADFuel levelanalog_inM190-C-35Analogue Voltage Input 3analog_insingle_source
OEM-4-AFECU power +14V (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-4-AGConstant +12Vpower_inM190-A-38Battery Backuppower_insingle_source
OEM-4-BBrake switchdigital_inM190-A-14Digital Input 2digital_insingle_source
OEM-4-CPower steering pressure switchdigital_inM190-A-30Digital Input 3digital_insingle_source
OEM-4-DVVT oil-control solenoidlow_side_outM190-A-26Peak Hold Injector 3injector_outsingle_source
OEM-4-FA/C requestdigital_inM190-A-37Digital Input 4digital_insingle_source
OEM-4-HNeutral switchdigital_inM190-C-27Universal Digital Input 4digital_insingle_source
OEM-4-IClutch switchdigital_inM190-C-40Universal Digital Input 5digital_insingle_source
OEM-4-JVTCS vacuum switchdigital_inM190-C-47Universal Digital Input 6digital_insingle_source
OEM-4-L+5V sensor supplyvrefM190-A-16Sensor 5.0V C3vrefsingle_source
OEM-4-MKnock sensorknock_inM190-C-51Knock Input 1knock_insingle_source
OEM-4-NIntake air temperature (IAT)temp_inM190-C-39Analogue Temperature Input 2temp_insingle_source
OEM-4-OSignal 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-4-PCoolant temperature (ECT)temp_inM190-C-37Analogue Temperature Input 1temp_insingle_source
OEM-4-VThrottle position (TPS)analog_inM190-C-36Analogue Voltage Input 2analog_insingle_source
OEM-4-WFront O2 signallambda_nb_inM190-A-6Lambda Narrow Input 2lambda_nb_insingle_source
OEM-4-XMass air flow (MAF)analog_inM190-C-42Analogue Voltage Input 1analog_insingle_source

Cut list

WireFromToGauge (mm²)ColourLengthSignalIdent
W1OEM-2-PSP-14V-10.85no routeISC valve +14V feed—
W2OEM-4-AFSP-14V-10.85no routeECU power +14V (main relay)—
W3SP-14V-1M190-B-H0.85no routeBattery Positive 1—
W4SP-14V-1M190-B-J0.85no routeBattery Positive 2—
W5SP-14V-1M190-B-K0.85no routeBattery Positive 3—
W6SP-14V-1M190-B-L0.85no routeBattery Positive 4—
W7OEM-4-AGM190-A-380.85no routeConstant +12V—
W8OEM-3-ASP-GND-10.85no routePower ground—
W9OEM-3-BSP-GND-10.85no routePower ground—
W10OEM-4-ASP-GND-10.85no routePower ground—
W11SP-GND-1M190-B-G0.85no routeBattery Negative 1—
W12SP-GND-1M190-B-W0.85no routeBattery Negative 2—
W13SP-GND-1M190-B-X0.85no routeBattery Negative 3—
W14SP-GND-1M190-B-Y0.85no routeBattery Negative 4—
W15SP-GND-1M190-B-Z0.85no routeBattery Negative 5—
W16SP-GND-1M190-B-c0.85no routeBattery Negative 6—
W17OEM-4-OSP-0V-10.5no routeSignal ground—
W18SP-0V-1M190-A-180.5no routeSensor 0V C1—
W19SP-0V-1M190-A-190.5no routeSensor 0V C2—
W20SP-0V-1M190-A-200.5no routeSensor 0V C3—
W21SP-0V-1M190-C-140.5no routeSensor 0V A1—
W22SP-0V-1M190-C-150.5no routeSensor 0V A2—
W23SP-0V-1M190-C-230.5no routeSensor 0V B1—
W24SP-0V-1M190-C-300.5no routeSensor 0V B2—
W25OEM-4-LM190-A-160.5no route+5V sensor supply—
W26OEM-3-YM190-C-180.5no routeCrank position (CKP)—
W27OEM-3-VM190-C-320.5no routeCam position (CMP)—
W28OEM-4-MM190-C-510.5no routeKnock sensor—
W29OEM-3-FM190-C-160.5no routeIgnition 1 (coils 1+4, wasted spark)—
W30OEM-3-IM190-C-80.5no routeIgnition 2 (coils 2+3, wasted spark)—
W31OEM-2-AM190-A-110.5no routeInjector 1—
W32OEM-2-DM190-A-30.5no routeInjector 2—
W33OEM-2-GM190-B-U0.5no routeInjector 3—
W34OEM-2-JM190-A-120.5no routeInjector 4—
W35OEM-2-BM190-A-20.5no routeCooling fan relay—
W36OEM-2-CM190-B-V0.5no routeCondenser fan relay—
W37OEM-2-KM190-A-10.5no routeA/C clutch relay—
W38OEM-2-MM190-B-b0.5no routeFuel pump relay—
W39OEM-3-HM190-A-50.5no routeMain relay—
W40OEM-3-JM190-B-A0.5no routeFront O2 heater—
W41OEM-3-PM190-B-B0.5no routeRear O2 heater—
W42OEM-2-QM190-B-S0.5no routeISC valve low side—
W43OEM-2-EM190-A-480.5no routeEGR valve—
W44OEM-2-FM190-B-a0.5no routeEGR valve—
W45OEM-2-HM190-A-400.5no routeEGR valve—
W46OEM-2-IM190-B-T0.5no routeEGR valve—
W47OEM-2-NM190-A-250.5no routeVTCS solenoid (intake butterflies)—
W48OEM-2-RM190-A-100.5no routeMalfunction indicator lamp (MIL)—
W49OEM-3-DM190-A-470.5no routeEGR boost solenoid—
W50OEM-3-EM190-A-320.5no routeCharcoal canister purge—
W51OEM-3-MM190-A-170.5no routeAlternator control—
W52OEM-3-UM190-A-40.5no routeCharge lamp—
W53OEM-4-DM190-A-260.5no routeVVT oil-control solenoid—
W54OEM-4-XM190-C-420.5no routeMass air flow (MAF)—
W55OEM-4-VM190-C-360.5no routeThrottle position (TPS)—
W56OEM-4-AAM190-A-70.5no routeRear O2 signal—
W57OEM-4-WM190-A-60.5no routeFront O2 signal—
W58OEM-4-PM190-C-370.5no routeCoolant temperature (ECT)—
W59OEM-4-NM190-C-390.5no routeIntake air temperature (IAT)—
W60OEM-4-ADM190-C-350.5no routeFuel level—
W61OEM-3-TM190-C-250.5no routeVehicle speed—
W62OEM-3-SM190-A-210.5no routeImmobiliser—
W63OEM-4-BM190-A-140.5no routeBrake switch—
W64OEM-4-CM190-A-300.5no routePower steering pressure switch—
W65OEM-4-FM190-A-370.5no routeA/C request—
W66OEM-4-HM190-C-270.5no routeNeutral switch—
W67OEM-4-IM190-C-400.5no routeClutch switch—
W68OEM-4-JM190-C-470.5no routeVTCS vacuum switch—

Bill of materials

CategoryPart numberManufacturerDescriptionQtyUnit

ECU setup sheet

RoleEngine refEngine signalSensorECU pointECU functionECU classSetup flag
No configured channels.

Findings

Open (22)

SeverityCodeSubjectMessage
warnNET_FAMILYOEM-3-J ↔ M190-B-AOEM-3-J "Front O2 heater" [low_side_out] is wired to M190-B-A "Half Bridge Output 1" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-3-P ↔ M190-B-BOEM-3-P "Rear O2 heater" [low_side_out] is wired to M190-B-B "Half Bridge Output 2" [hbridge_out]. A half-bridge can act as a low-side switch only if configured that way.
warnNET_FAMILYOEM-3-V ↔ M190-C-32OEM-3-V "Cam position (CMP)" [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-3-Y ↔ M190-C-18OEM-3-Y "Crank position (CKP)" [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-2-B ↔ M190-A-2OEM-2-B "Cooling fan 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-2-C ↔ M190-B-VOEM-2-C "Condenser fan relay" [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.
infoNET_FAMILYOEM-2-E ↔ M190-A-48OEM-2-E "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-F ↔ M190-B-aOEM-2-F "EGR 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-H ↔ M190-A-40OEM-2-H "EGR 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-I ↔ M190-B-TOEM-2-I "EGR valve" [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-2-K ↔ M190-A-1OEM-2-K "A/C clutch relay" [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-2-M ↔ M190-B-bOEM-2-M "Fuel pump relay" [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-N ↔ M190-A-25OEM-2-N "VTCS solenoid (intake butterflies)" [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.
infoNET_FAMILYOEM-2-Q ↔ M190-B-SOEM-2-Q "ISC valve low side" [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-R ↔ M190-A-10OEM-2-R "Malfunction indicator lamp (MIL)" [low_side_out] is wired to M190-A-10 "Low Side Injector 8" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-3-D ↔ M190-A-47OEM-3-D "EGR boost solenoid" [low_side_out] is wired to M190-A-47 "Low Side Injector 9" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-3-E ↔ M190-A-32OEM-3-E "Charcoal canister purge" [low_side_out] is wired to M190-A-32 "Low Side Injector 10" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-3-H ↔ M190-A-5OEM-3-H "Main relay" [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-3-M ↔ M190-A-17OEM-3-M "Alternator control" [low_side_out] is wired to M190-A-17 "Low Side Injector 11" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-3-U ↔ M190-A-4OEM-3-U "Charge lamp" [low_side_out] is wired to M190-A-4 "Low Side Injector 12" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoNET_FAMILYOEM-4-D ↔ M190-A-26OEM-4-D "VVT oil-control solenoid" [low_side_out] is wired to M190-A-26 "Peak Hold Injector 3" [injector_out]. Injector drivers can usually run general low-side loads; check current and PWM frequency.
infoUNMAPPEDOEM1 optional OEM pins are not mapped: OEM-3-O Tachometer output

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-3 O: Tachometer output: no free tacho/frequency_out/low_side/ls_hs on MoTeC M190

Sources

ReliabilityKindTitleURLArchiveCapturedSHA-256
4vendor_docLink G4X MX5NB2X install manual (NB2 2001-05)https://linkecu.com/documentation/MX5XNB2.pdfarchive2026-10-05741efdd9f2c8
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