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1991 Pontiac Grand Am LE 2.3L Poor Idle Quality, Surge
Posted to GM Driveability on 2/27/2001

Car came in with Check Engine Light on - MAP high, and poor running. A check of the MAP sensor showed it to be working correctly. Engine vacuum was only 8 in. at idle and only went up to 14-15 at 2000 rpm. Compression check showed #3 cylinder at 80 psi while a...

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car Vehicle Data

1991 Pontiac Grand Am LE

VIN 1G2NE54D8M
Engine2.3 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI
EmissionsCa - ODB1
SymptomsPoor Idle Quality, Surge
OccursAlways
Message Closed w/Summary

car Vehicle Data

1991 Pontiac Grand Am LE

VIN 1G2NE54D8M
Engine2.3 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI
EmissionsCa - ODB1
SymptomsPoor Idle Quality, Surge
OccursAlways