Testing Digital EGR Valve Wireing

So are trying to test the signal to the egr valve with the test light?Most of the time the issue with the linar egr valves is they get carboned up and stick open or closed.Do you have any codes in the computer?Have you checked to make sure the egr ports are clear?

Have installed 2 new egr valves in the past 3 weeks.EGR ports are clear. But still have a CODE 32.

What size engine do you have?

Have you tested the EGR wiring back to the computer for short/open circuit if not do so and if it checks out-Think! Computer

saturntech9, I have a 3.1L V6

rasmataz, I have a basic test light, but I don't know if I should hook the metal clip to the + side of the battery or hook the metal clip to a hot wire.

Hook up the alligator clip to the battery negative post and probe the wiring with the pointed end-

I really don't think you should be probing around with that test light at all. I'm betting that you are not using a "computer safe" test light and you can easily burn out the quad drivers in the computer that way. You cannot use an incandescent bulb, only LED.

Wrenchtech is right get a led test light.Also how did you make sure the egr ports were clear?Did you remove the egr valve and start it for a few seconds and see if you can hear a loud exhaust leak and the engine races?