Idle problem

1994 BUICK CENTURY
175,000 MILES • FWD • AUTOMATIC
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ANTON925
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  • 8 POSTS
1994 buick century 4cyl 2.2 176,000 miles I replaces spark plugs, ingniton wire 2 coils gas filter,air filter, fuel 3 injectors, EGR valve , map sensor, Fuel pressure is 140 ,compresion is 130 all cylinders.No vacuum leak detected.
Car runs on open road fine power ect but idle rough specialy on warm up condition and stalls at stop or run rough , this time when I shift in neutral some times accelaret and idle runs better do you have answer need help anton
Mar 9, 2011 at 2:16 AM
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RASMATAZ
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  • 75,992 POSTS
Clean out the idle air control valve and EGR valve and recheck the fuel pressure its too high
Mar 9, 2011 at 2:33 AM
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ANTON925
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  • 8 POSTS
I FUEL PRESSURE IS TO HIGH SHOULD I REPLACE FUEL PRESSURE REGULATOR PRESSURE IS I BELIVE 41 NOT141 ENGINE RUN IDLE ONLY WHEN IT GET WARM ON FREEZING MORNINGS JUST FINE
Mar 10, 2011 at 1:52 AM
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