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1991 Pontiac Sunbird LE 3.1L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall
Posted to GM Driveability on 11/11/2004 4 Replies

when the car is in open loop idles great, but once in closed loop the integrator number 128 drops down to 90 - 95 and the block learn follows. Idle gets so bad it stalls and then fires up no problem. when o2 is unplugged the car idles good but then its in open...

4 Replies Received (View Replies)

  Related Documents & Media  1991 Pontiac Sunbird LE

 
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car Vehicle Data

1991 Pontiac Sunbird LE

VIN 1G2JB11T8M
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI / mpi
Emissionsegr cat pcv
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall
OccursAlways, Hot, Under Load, Idle
Misc.2 Dr
Message Closed w/FIX

car Vehicle Data

1991 Pontiac Sunbird LE

VIN 1G2JB11T8M
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI / mpi
Emissionsegr cat pcv
SymptomsExcessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall
OccursAlways, Hot, Under Load, Idle
Misc.2 Dr