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1988 Buick Century Custom 2.8L Excessive Emissions, Poor Idle Quality, Surge
Posted to GM Driveability on 5/24/2001 6 Replies

THIS CAR WHEN IT IDLES ROUGH AND SKIPS IT HAS NO RPM OR CRANK RPM SIGNAL, NO O2 VOLTAGE OR NO BATTERY VOLTAGE ON SCANNER. IT ALSO STAYS IN OPEN LOOP, SOMETIMES WHEN IT DOES GO TO CLOSED LOOP IT PICKS UP ALL VOLTAGE AND RPM SIGNALS, IT SEEMS TO RUN OK FOR A WHI...

6 Replies Received (View Replies)

  Related Documents & Media  1988 Buick Century Custom

 
Message Closed w/FIX

car Vehicle Data

1988 Buick Century Custom

VIN 1G4AH51W1J
Engine2.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsFEDERAL
SymptomsExcessive Emissions, Poor Idle Quality, Surge
OccursAlways, Idle
Misc.Has Speed Density Update
Message Closed w/FIX

car Vehicle Data

1988 Buick Century Custom

VIN 1G4AH51W1J
Engine2.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI / SEFI
EmissionsFEDERAL
SymptomsExcessive Emissions, Poor Idle Quality, Surge
OccursAlways, Idle
Misc.Has Speed Density Update