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2001 Pontiac Grand Prix GT 3.8L Excessive Emissions, Poor Idle Quality, Hesitation
Posted to GM Driveability on 8/9/2004 7 Replies

I am having difficulty with this 3.8 .. The car has no power and idles rough. Ignition looks good , fuel pressure is right at 50 psi (in spec).. However it has 8 lbs of backpressure in the exhaust.. After removing the cat.. the power was restored but the idle ...

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Message Closed w/FIX

car Vehicle Data

2001 Pontiac Grand Prix GT

VIN 1G2WP52K01
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation
Message Closed w/FIX

car Vehicle Data

2001 Pontiac Grand Prix GT

VIN 1G2WP52K01
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation