87 in 85 wiring issues

[sully442]

Hello, I have a problem that maybe you can help with. I put a 1987 drivetrain into a 1985 GN and cannot get the wiring for the TPS, Crank, and Cam sensors right. We have Mitchell on demand at the shop and in two different places within mitchell it gives me different positions on the plugs for these sensors. I am hoping that someone can show me the factory schematics for it. I looked on a site earlier and the diagram they give looks like mitchells and doesn't show pin positions for the individual wires at the sensors it just shows a box with three wires coming out. Also the 1985 diagram shows a resistor in the wire from the ccci fuse to the ignition module where the 87 does not. Any help is greatly appreciated. If there are other things that I should do for this swap please let me know. Thanks...

 

[TurboDave]

Try the info here:

 

[TurboBuRick]

This is a good one to have too. http://www.vortexbuicks-etc.com/ecmwiring.htm

 

[montvaleplace]

Hey turbo Dave, why does the crank sensor have corrections on it? It looks like they were switched, did you do that? or was that a factory correction?

 

[TurboDave]

I didn't make the changes, but they are correct as shown. G is ground and F is signal

 

[montvaleplace]

I didn't make the changes, but they are correct as shown. G is ground and F is signal

Got it, the two pinks on the injector harness were swapped. Thanks for the help...