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1993 Buick Century Special 3.3L Excessive Emissions
Posted to GM Driveability on 8/18/2005 6 Replies

Trying to get this one through state inspection. On the dyno, as soon as throttle position reaches 4%, the O2 sensor drops to 0.01V and stays there. Artificial richening brings it to .85V instantly. If I let the TPS go back below 4%, the O2 starts switching ev...

6 Replies Received (View Replies)

  Related Documents & Media  1993 Buick Century Special

 
Message Closed w/FIX

car Vehicle Data

1993 Buick Century Special

VIN 1G4AG55N4P
Engine3.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsExcessive Emissions
OccursAlways

Trouble Codes

44System Lean History Code none current.
Message Closed w/FIX

car Vehicle Data

1993 Buick Century Special

VIN 1G4AG55N4P
Engine3.3 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsExcessive Emissions
OccursAlways

Trouble Codes

44System Lean History Code none current.