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91 Lumina runs better with EGR valve disconnected


ryockel
09-10-2005, 09:29 PM
I've run my Lumina for 4 yrs. with the EGR valve disconnected. I recently moved to Cary, NC and I had a problem getting it inspected even though the numbers were good. He said he won't pass it next time without the EGR connected.

cadgear
09-10-2005, 09:45 PM
Chances are, you probably have the motorpack being commanded to full open due to a short (most likely internal to the valve), thus allowing a full shot of exhaust into the intake charge. Check wiring regardless, grab a new valve, and slap it on. Ought to work out for you.

ryockel
09-13-2005, 07:07 PM
Chances are, you probably have the motorpack being commanded to full open due to a short (most likely internal to the valve), thus allowing a full shot of exhaust into the intake charge. Check wiring regardless, grab a new valve, and slap it on. Ought to work out for you.


Can't be in the valve, it's new. I do believe that I am getting a command to full open. I'll check to see what kind of reading I get. It may be a while. I have other cars to work on first. I will be tracing my wiring. I wonder if the route is on the schematic in the Haynes manual. Thanks.

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