My 1991 Camaro RS (Auto Transmission) starts fine when the engine is cold. However, when the engine is warm, it has trouble starting up. In addition, after my car has been running for a while, say, 5-15 minutes, the engine wants to stall while idling. Once the engine does stall, it has trouble starting back up. It will not shut off if gas is applied. Any ideas???

I was thinking the EGR valve. Could that potentially be the problem?

 

i had a similar pronblen replaced my maf and it fixed it, also possible is the egr valve,vaccum switch, intake manifold gasket, or vacuum leak just some suggestions mine was a 96 not sure if they all apply to a 91

 

91 RS, 3.1 or 5.0 will not have a MAF.
But seeing how the poster has 1 post in 22 days either the problem is fixed or the person only came for the one thing. Its unfortunate no one answered then.

But just in case. What engine does your 91 RS have?

 

yea i dint think that the 91s had an maf but it could still be a leak