Thread: Wiring diagram, 2000 GTP

Do any of you have a wiring diagram for said car? I'm going to try to diagnose my EGR not getting power. I already know the valve works, it's just not getting power from the computer. The control signal is there, but no power to the motor. I bought a wire tracer to try to track down a break in the wire, but need to know which pin it should be on the computer end of the harness.

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I do have the service manual, but I usually am lazy and use autozone. Create a free account and link your vehicle as your selected model. Go to repair help tab>Vehicle Repair Guides>Wiring Diagrams. Use the left hand side to select what you're looking for. Has pretty much every diagram in the service manual. To print it out, just right click and save as image, then open and print! Enjoy!

So I'm still working on figuring this P0401 code out. Here's where I'm at so far: I found the following link: Part 6 -How To Test the GM EGR Valve -Buick, Chevy, Olds, Pontiac

I worked my way through all of them, and it passed everything with one small exception. The wire labeled "E" does have 12V, but only while the connector is disconnected. As soon as I plug it back into the EGR valve the power drops to ~0.03V. I'm stumped. There is no carbon blocking anything, and when I try to start it with the valve off it stalls immediately. All other tests are within limits.

Of course, to add insult to injury the brand new CV axle that I installed in February has a cracked boot and puked grease everywhere, so I'll have to do that damn thing again. I'm ready to sell this car.

Yes, insufficient flow.
I'll look into the MAP sensor. Thanks!

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