My car has been acting up off and on lately. I had first thought that it was a bad O2. Or a bad connection. So I changed both O2's and checked all wiring to them. The problem had seem to have been fixed until today. I was driving and the car suddenly started acting up again. Just as it had a couple of weeks ago. But this time I FINALLY got an SES light along with a code. It was a code 32. Which is for the EGR. My question is. Should I replace the EGR valve? Or the EGR solenoid. Also where is the cheapest place to get one from? GM Parts Direct? Thanks for the help.

 

Oh. Does anybody have or know of a how to page on replacing the EGR valve? Thanks again.

 

Does the code 32 tell you egr valve of Egr circuit...cause I got an EGR circuit code and I replaced the solenoid and the valve was fine. Still didnt fix my problem. Didnt know what to check after that so I said screw it and just disconnected the solenoid

 

Come on guys. I know I'm not the only one that's had to replace the EGR.

 

Replacing EGR is simple. 2 bolts for the valve, one bolt for the noid. I have the valve and noid for sale if you wanted to try those before buying a new one. They were working when pulled from the car.

 

EGR recirculation - the valve, is DTC 32

EGR circuit - the solenoid is DTC 27.

For some reason the PCM is not seeing the reaction at the MAP sensor it is expecting when the EGR valve is supposed to open. Sort of an unusual code for the OBD-I 93-95 cars, since generally, the diagnostic test is not very sensitive. Many people are able to completely delete the EGR valve and get no code at all. This is not like the OBD-II's where just reducing the backpressure in the exhaust system is enough to kick the EGR flow code.

Make sure the vacuum line from the drivers side of the intake manifold to the solenoid is not leaking, same with the vacuum line from the solenoid to the EGR valve.

Might also be a sticky valve, and removing it and cleaning it might cure the problem. While its off, you can apply a vacuum to the valve and make sure it is moving like it is supposed to.

EGR Valve

Although its hard to reach, there are only two studs for the EGR valve to mount on... unfortunatley one of them is hidden from view in that picture by the vacuum line that fell off the fuel pressure regulator.

 

thewinner, I just might get that from you. I'll let you know for sure.

Thanks Guys.

 

How do I eliminate it? My car is OBD1. So I should be able to get rid of it and have no problems. I was thinking about removing the Air Pump and all of that junk anyway. When I remove or make the EGR non-functional, what all do I have to do? Thanks once again guys.