Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
100%
Stock ECU being replaced
Constant +12V
ECU power +14V (main relay)
M190-A-1 Low Side Injector 3
M190-C-16 Low Side Ignition 1
M190-C-8 Low Side Ignition 2
M190-A-2 Low Side Injector 2
M190-A-21 Digital Input 1
M190-A-14 Digital Input 2
M190-A-30 Digital Input 3
M190-A-37 Digital Input 4
M190-C-25 Universal Digital Input 3
M190-B-V Low Side Injector 2
M190-C-27 Universal Digital Input 4
M190-C-40 Universal Digital Input 5
M190-C-47 Universal Digital Input 6
OEM-1
Stock ECU being replaced
AConstant +12V
BECU power +14V (main relay)
EMalfunction indicator lamp (MIL)
GIgnition 1 (coils 1+4, wasted spark)
HIgnition 2 (coils 2+3, wasted spark)
JA/C relay
KDiagnostic mode switch (TEN)
NWide-open throttle switch
OStop light switch
PPower steering pressure switch
QA/C thermo switch
RA/C extra cooling fan relay
SHeater control switch (A/C request)
UTail fuse / TNS (parking lamp +12V)
VNeutral/clutch switch
GND
GND
0V sensor
0V sensor
M190-C-18 Universal Digital Input 1
F no data
M190-C-32 Universal Digital Input 2
5V ref
M190-C-17 Universal Digital Input 7
M190-C-36 Analogue Voltage Input 2
M190-A-7 Lambda Narrow Input 1
M190-C-42 Analogue Voltage Input 1
M190-C-39 Analogue Temperature Input 2
M190-C-37 Analogue Temperature Input 1
M190-A-11 Peak Hold Injector 1
M190-A-3 Low Side Injector 1
M190-B-b Low Side Injector 3
M190-A-5 Low Side Injector 4
M190-B-U Low Side Injector 1
M190-A-12 Peak Hold Injector 2
OEM-2
Stock ECU being replaced
APower ground
BPower ground
CSensor ground (E2)
DSensor ground (E2)
ECrank position (CAS NE)
F no data
GCam position (CAS G)
K+5V sensor supply
LIdle switch (TPS)
MTPS signal (A/T)
NO2 sensor
OAir flow meter (AFM)
PIntake air temperature (IAT)
QCoolant temperature (ECT)
UInjector 1 & 3 (batch)
VInjector 2 & 4 (batch)
WIdle speed control (ISC) valve
XPurge solenoid valve
YInjector 3 (California sequential)
ZInjector 4 (California sequential)
M190
M190-A
M190
1Low Side Injector 3
2Low Side Injector 2
3Low Side Injector 1
5Low Side Injector 4
7Lambda Narrow Input 1
11Peak Hold Injector 1
12Peak Hold Injector 2
14Digital Input 2
16Sensor 5.0V C3
18Sensor 0V C1
19Sensor 0V C2
20Sensor 0V C3
21Digital Input 1
30Digital Input 3
37Digital Input 4
38Battery Backup
OEM-1-E Malfunction indicator lamp (MIL)
OEM-1-J A/C relay
OEM-2-V Injector 2 & 4 (batch)
OEM-2-X Purge solenoid valve
OEM-2-N O2 sensor
OEM-2-U Injector 1 & 3 (batch)
OEM-2-Z Injector 4 (California sequential)
OEM-1-N Wide-open throttle switch
5V ref
0V sensor
0V sensor
0V sensor
OEM-1-K Diagnostic mode switch (TEN)
OEM-1-O Stop light switch
OEM-1-P Power steering pressure switch
Battery Backup
M190-B
M190
bLow Side Injector 3
cBattery Negative 6
GBattery Negative 1
HBattery Positive 1
JBattery Positive 2
KBattery Positive 3
LBattery Positive 4
ULow Side Injector 1
VLow Side Injector 2
WBattery Negative 2
XBattery Negative 3
YBattery Negative 4
ZBattery Negative 5
OEM-2-W Idle speed control (ISC) valve
GND
GND
Battery Positive 1
Battery Positive 2
Battery Positive 3
Battery Positive 4
OEM-2-Y Injector 3 (California sequential)
OEM-1-R A/C extra cooling fan relay
GND
GND
GND
GND
M190-C
M190
8Low Side Ignition 2
14Sensor 0V A1
15Sensor 0V A2
16Low Side Ignition 1
17Universal Digital Input 7
18Universal Digital Input 1
23Sensor 0V B1
25Universal Digital Input 3
27Universal Digital Input 4
30Sensor 0V B2
32Universal Digital Input 2
36Analogue Voltage Input 2
37Analogue Temperature Input 1
39Analogue Temperature Input 2
40Universal Digital Input 5
42Analogue Voltage Input 1
47Universal Digital Input 6
OEM-1-H Ignition 2 (coils 2+3, wasted spark)
0V sensor
0V sensor
OEM-1-G Ignition 1 (coils 1+4, wasted spark)
OEM-2-L Idle switch (TPS)
OEM-2-E Crank position (CAS NE)
0V sensor
OEM-1-Q A/C thermo switch
OEM-1-S Heater control switch (A/C request)
0V sensor
OEM-2-G Cam position (CAS G)
OEM-2-M TPS signal (A/T)
OEM-2-Q Coolant temperature (ECT)
OEM-2-P Intake air temperature (IAT)
OEM-1-U Tail fuse / TNS (parking lamp +12V)
OEM-2-O Air flow meter (AFM)
OEM-1-V Neutral/clutch switch
SP-14V · 6 pins
SP-GND · 9 pins
SP-0V · 10 pins
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
51 / 51 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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