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1994 Pontiac Sunbird LE 3.1L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy
Posted to GM Driveability on 4/8/2002 11 Replies

Car runs rich [...] MAP high & o2 rich codes,see below. Fuel trim drops to 70-80 before o2 starts switching. O2 stays at 900mv till then. Checked fuel [...],holds pressure when engine not running. Checked vacuum hose to map & fuel [...]. for fuel and leaks-ok....

11 Replies Received (View Replies)

  Related Documents & Media  1994 Pontiac Sunbird LE

 
Message Closed w/FIX

car Vehicle Data

1994 Pontiac Sunbird LE

VIN 1G2JB14T5R
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality, Poor Fuel Economy
OccursAlways

Trouble Codes

33map circuit high
45rich exaust
Message Closed w/FIX

car Vehicle Data

1994 Pontiac Sunbird LE

VIN 1G2JB14T5R
Engine3.1 L / 6 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsExcessive Emissions, Poor Idle Quality, Poor Fuel Economy
OccursAlways

Trouble Codes

33map circuit high
45rich exaust