Thread: Blue/White Plug ECU & OBD1 vs. OBD2

So does anyone know the diffrence between the Blue and White ECU plugs?

Does it have to do with OBD1&2?


Also from Body to ECU does anyone know if there is a big diffrence between blue and white?

Blue = OBD1
White = OBD2

That 2nd question I'm actually researching now..

^^^ i don know about that....my 96 p10 ecu has a blue connector

Backwards.

White = OBD2
Blue = OBD1

Also, from "body to ECU"? The body harness and the engine harness are two separate harnesses. The ECU harness is directly part of the Engine bay harness.

dammit that's how i had it the first time!

now that i think about it, wasnt it only certain g20's that were obdII. something about a 96.5 ........

And 94.5 B13's IIRC had OBDII harness?

that i dunno about. just did a search on the other forum, but came up with nothing. But can't you just swap an OBD2 harness in a OBD1 car though?

The plugs behind the radio in the center console and the connections on the sensors are what differ in them. Those plugs are for the OBD connector and the fuel pump and a few other things that are triggered off the ECU.

brent