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
SPEEDUINO-A-18 Proto area 5 (clutch)
SPEEDUINO-A-7 Ignition 1
SPEEDUINO-A-34 Ignition 2
SPEEDUINO-A-16 Proto area 3 (fuel pump)
SPEEDUINO-A-37 PWM idle
SPEEDUINO-A-14 Proto area 1 (flex fuel)
SPEEDUINO-A-15 Proto area 2 (fan)
OEM-1
Stock ECU being replaced
CStart signal
GIgnition 1 (coils 1+4, wasted spark)
HIgnition 2 (coils 2+3, wasted spark)
JA/C relay
LCoolant fan relay
MVehicle speed
RCooling fan relay
GND
GND
0V sensor
0V sensor
SPEEDUINO-A-25 Crank input / VR1+
0V sensor
SPEEDUINO-A-24 Cam input / VR2+
SPEEDUINO-A-17 Proto area 4 (tachometer)
5V ref
SPEEDUINO-A-38 VVT
SPEEDUINO-A-22 TPS input
SPEEDUINO-A-21 O2 sensor
SPEEDUINO-A-20 Inlet air temp (IAT)
SPEEDUINO-A-19 Coolant temp (CLT)
SPEEDUINO-A-36 Idle 2 (3-wire idle)
SPEEDUINO-A-35 Boost
SPEEDUINO-A-1 Injector 1
SPEEDUINO-A-2 Injector 2
SPEEDUINO-A-3 Injector 3
SPEEDUINO-A-5 Injector 4
OEM-2
Stock ECU being replaced
APower ground
BPower ground
CSensor ground (E2)
DSensor ground (E2)
ECrank position (CAS NE)
FMAF ground
GCam position (CAS G)
ITachometer output
K+5V sensor supply
LRear defroster relay
MThrottle position (TPS)
NO2 sensor
PIntake air temperature (IAT)
QCoolant temperature (ECT)
SCondenser fan relay
TFuel pump relay
UInjector 1
VInjector 2
YInjector 3
ZInjector 4
SPEEDUINO
SPEEDUINO-A
SPEEDUINO
1Injector 1
2Injector 2
3Injector 3
5Injector 4
7Ignition 1
9Ground
10Ground
12Ground
135V
14Proto area 1 (flex fuel)
15Proto area 2 (fan)
16Proto area 3 (fuel pump)
17Proto area 4 (tachometer)
18Proto area 5 (clutch)
19Coolant temp (CLT)
20Inlet air temp (IAT)
21O2 sensor
22TPS input
23Ground
24Cam input / VR2+
25Crank input / VR1+
34Ignition 2
35Boost
36Idle 2 (3-wire idle)
37PWM idle
38VVT
OEM-2-U Injector 1
OEM-2-V Injector 2
OEM-2-Y Injector 3
OEM-2-Z Injector 4
OEM-1-G Ignition 1 (coils 1+4, wasted spark)
GND
GND
0V sensor
5V ref
OEM-1-M Vehicle speed
OEM-1-R Cooling fan relay
OEM-1-J A/C relay
OEM-2-I Tachometer output
OEM-1-C Start signal
OEM-2-Q Coolant temperature (ECT)
OEM-2-P Intake air temperature (IAT)
OEM-2-N O2 sensor
OEM-2-M Throttle position (TPS)
0V sensor
OEM-2-G Cam position (CAS G)
OEM-2-E Crank position (CAS NE)
OEM-1-H Ignition 2 (coils 2+3, wasted spark)
OEM-2-T Fuel pump relay
OEM-2-S Condenser fan relay
OEM-1-L Coolant fan relay
OEM-2-L Rear defroster relay
SP-GND · 5 pins
SP-0V · 6 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.
31 / 31 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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