I was diagnosed by 2 places that my 1995 chevy lumina needed a new egr valve due to the check engine light being on. I got a new EGR valve but the check engine light is still on. Evidently there is something else wrong with the car. Since the check engine light is still on would you figure that my EGR valve is still good and that the light comes on for some other problem?
i think your right. I'm not sure but a think your EGR valve is vacuum operated. If so, there is a vacuum solenoid to control the vacuum to the egr valve. There is also intake vacuum to this solenoid. Could be no vacuum to solenoid or a bad solenoid or wires controlling the solenoid. But also could be a completly different problem other than egr. You need to go back to the shop that put on the egr valve and find out why the egr valve didnt fix your problem. And either have them fix it right or get your money back.
