dirt_igirt Posted September 8, 2009 Report Posted September 8, 2009 i hit the brakes in my 1991 grand prix 3.1 and if i come to a stop it will somtimes stall just started doing it today Quote
RobertISaar Posted September 8, 2009 Report Posted September 8, 2009 its most likely your EGR solenoid #1 stuck open... Quote
dirt_igirt Posted September 8, 2009 Author Report Posted September 8, 2009 where is that located Quote
RobertISaar Posted September 8, 2009 Report Posted September 8, 2009 on top of your upper intake, near the brake booster. to test it: connect pin D to a good 12volt source, and then connect pins A B and C to known-good grounds(one at a time) to see if a certain valve is sticking. if the lead arcs and you don't hear the solenoid move, its bad. you should hear it easily if the engine is off. Quote
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