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1989 Buick Reatta 3.8L Excessive Emissions
Posted to GM Driveability on 5/7/2009 20 Replies

I have been testing this vehicle for two days now, here is what I have found so far. Engine running extremly rich. 10% CO on emissions test, no engine light. Fuel pressure is good. Mass air flow sensor cleaned and tested within specs. O2 sensor stuck biased lo...

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Message Closed w/FIX

car Vehicle Data

1989 Buick Reatta

VIN 1G4EC11C0K
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsCA EMISSIONS
SymptomsExcessive Emissions
OccursAlways
Message Closed w/FIX

car Vehicle Data

1989 Buick Reatta

VIN 1G4EC11C0K
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsCA EMISSIONS
SymptomsExcessive Emissions
OccursAlways