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
GND
ELITE2500-A-28 INJ 6
ELITE2500-A-20 INJ 2
ELITE2500-A-22 INJ 4
ELITE2500-B-19 DPO 4
ELITE2500-A-24 DPO 5 (fuel pump trigger)
GND
ELITE2500-A-3 IGN 1
ELITE2500-A-18 DPO 1
GND
ELITE2500-B-4 AVI 8 (Coolant Temp)
ELITE2500-A-2 AVI 4
0V sensor
ELITE2500-B-13 AVI 1 (O2 Input 2)
ELITE2500-A-17 AVI 3
ELITE2500-A-32 Stepper 1 P2 / DPO
ECU main power (from engine-electronics relay)
ELITE2500-A-19 INJ 1
ELITE2500-A-27 INJ 5
ELITE2500-A-21 INJ 3
ELITE2500-A-1 DPO 2
ELITE2500-A-23 DPO 3
0V sensor
ELITE2500-B-21 KNOCK 1
ELITE2500-B-3 AVI 7 (Air Temp)
ELITE2500-B-9 SPI 2
ELITE2500-A-13 12V ignition input
ELITE2500-B-10 SPI 3
ELITE2500-A-16 AVI 2
5V ref
ELITE2500-B-2 Cam (Home) (+)
ELITE2500-A-25 DPO 6 (ECR OUT)
ELITE2500-A-33 Stepper 1 P3 / DPO
ELITE2500-A-5 IGN 3
ELITE2500-A-31 Stepper 1 P1 / DPO
GND
GND
ELITE2500-A-4 IGN 2
ELITE2500-B-8 SPI 1
0V sensor
ELITE2500-B-1 Crank (Trigger) (+)
OEM-A
Stock ECU being replaced
1Ground (E-1)
2Injector 6 (cyl 6)
3Injector 2 (cyl 2)
4Injector 4 (cyl 4)
5Check engine light (MIL)
6Fuel pump relay control
7Ground (E-2)
8Ignition coil 2 (coil pack pin 2)
9Engine electronics relay control
10Ground (OBD1 EGR enable)
14Coolant temperature (CLT)
15EGR temperature sensor
16MAF ground
17MAF signal
20O2 sensor 1 (primary)
22Tachometer output
23ECU main power (from engine-electronics relay)
24Injector 1 (cyl 1)
25Injector 5 (cyl 5)
26Injector 3 (cyl 3)
27Idle air control valve
31EVAP canister purge valve
33Sensor ground bus
34Knock sensor 1
36Intake air temperature (IAT)
37A/C compressor switch
38Ignition switch (run/start)
39A/C switch (cabin)
40Throttle position sensor 1
41TPS power (+5V)
44Camshaft position sensor (G40)
49Secondary air injection relay control
51MFA fuel-consumption signal
52Ignition coil 4 (coil pack pin 4)
53Idle air control valve (2nd)
55Ground (E-3)
56Ground (E-4)
60Ignition coil 3 (coil pack pin 3)
65Vehicle speed sensor (VSS)
67Crank sensor return (VR-)
68Crank position sensor (G28, VR+)
ELITE2500
ELITE2500-A
ELITE2500
1DPO 2
2AVI 4
3IGN 1
4IGN 2
5IGN 3
9+5V DC
10Battery ground
11Battery ground
1312V ignition input
16AVI 2
17AVI 3
18DPO 1
19INJ 1
20INJ 2
21INJ 3
22INJ 4
23DPO 3
24DPO 5 (fuel pump trigger)
25DPO 6 (ECR OUT)
26ECU injector power input
27INJ 5
28INJ 6
31Stepper 1 P1 / DPO
32Stepper 1 P2 / DPO
33Stepper 1 P3 / DPO
OEM-A-27 Idle air control valve
OEM-A-15 EGR temperature sensor
OEM-A-8 Ignition coil 2 (coil pack pin 2)
OEM-A-60 Ignition coil 3 (coil pack pin 3)
OEM-A-52 Ignition coil 4 (coil pack pin 4)
5V ref
GND
GND
OEM-A-38 Ignition switch (run/start)
OEM-A-40 Throttle position sensor 1
OEM-A-20 O2 sensor 1 (primary)
OEM-A-9 Engine electronics relay control
OEM-A-24 Injector 1 (cyl 1)
OEM-A-3 Injector 2 (cyl 2)
OEM-A-26 Injector 3 (cyl 3)
OEM-A-4 Injector 4 (cyl 4)
OEM-A-31 EVAP canister purge valve
OEM-A-6 Fuel pump relay control
OEM-A-49 Secondary air injection relay control
ECU injector power input
OEM-A-25 Injector 5 (cyl 5)
OEM-A-2 Injector 6 (cyl 6)
OEM-A-53 Idle air control valve (2nd)
OEM-A-22 Tachometer output
OEM-A-51 MFA fuel-consumption signal
ELITE2500-B
ELITE2500
1Crank (Trigger) (+)
2Cam (Home) (+)
3AVI 7 (Air Temp)
4AVI 8 (Coolant Temp)
5Crank (Trigger) (−)
6Cam (Home) (−)
8SPI 1
9SPI 2
10SPI 3
11+13.8V ECU supply
13AVI 1 (O2 Input 2)
14Signal ground
15Signal ground
16Signal ground
19DPO 4
21KNOCK 1
OEM-A-68 Crank position sensor (G28, VR+)
OEM-A-44 Camshaft position sensor (G40)
OEM-A-36 Intake air temperature (IAT)
OEM-A-14 Coolant temperature (CLT)
SP-0V · 3 pins
SP-0V · 3 pins
OEM-A-65 Vehicle speed sensor (VSS)
OEM-A-37 A/C compressor switch
OEM-A-39 A/C switch (cabin)
+13.8V ECU supply
OEM-A-17 MAF signal
0V sensor
0V sensor
0V sensor
OEM-A-5 Check engine light (MIL)
OEM-A-34 Knock sensor 1
SP-GND · 8 pins
SP-14V · 4 pins
SP-0V · 9 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.
50 / 50 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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