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1999 Cadillac Catera 3.0L MIL Lamp on
Posted to GM Driveability on 5/15/2014 10 Replies

dtc's set at freeway speed long term fuel trim goes to positive 25 at freeway speeds both pre cat 02 sensors have been replaced condition still the same fuel pressure within spec fuel filter new no apparent vacuum leak check with smoke and carb cleaner

10 Replies Received (View Replies)

  Related Documents & Media  1999 Cadillac Catera

 
Message Closed w/FIX

car Vehicle Data

1999 Cadillac Catera

VIN W06VR52R6X
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

1999 Cadillac Catera

VIN W06VR52R6X
Engine3.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)