Hopefully you can help me out. I swapped the motor and didn't realized '91 4runner has the different wiring harness than what I had on '89 motor. I only need your help on a gray connector that connects to body.



1 - White/Black Line: 4WD Switch
2 - Green/White Line: (same color as #5) ???
3 - Purple: Check Engine Light
4 - N/A
5 - Green/White Line: Stop Light Switch
6 - Blue: ???
7 - Blue/Black Line: ???
8 - Black/Red Line: ???
9 - Yellow/Black Line: ???
10 - Black/Green Line: EFI Main
11 - N/A
12 - White/Green Line: ???
13 - N/A
14 - Big Black/Red Line: Ign to Ign Coil
15 - N/A
16 - White/Red Line: AC Idle Up
17 - N/A
18 - N/A
19 - N/A
20 - Green/Blue Line: Speed Sensor
21 - N/A
22 - Black/ White Line: Starter Relay
23 - Green/Lime Line: MAF
24 - N/A

Thanks

 

Just what are you trying to do?/

I see a picture with lots of numbers that mean nothing

Get the Toyota Electrical Wiring Diagrams for both vehicles sit down and do one wire at a time.

Does the plug you have even fit into the ECU or do you need to source a plug as well??