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2005 Cadillac STS 4.6L MIL Lamp on
Posted to GM Driveability on 11/5/2010 11 Replies

need help i cant find whats keeping my fuel trim up mostly on bank 2 at idle its around +15 bank 1 +9 at idle tryed massair flow smoked intake put intake gaskets in fuel trims climb on highway on decel also cleaned injectors found vaccum hose on back of intake...

11 Replies Received (View Replies)

  Related Documents & Media  2005 Cadillac STS

 
Message Closed w/FIX

car Vehicle Data

2005 Cadillac STS

VIN 1G6DC67A75
Engine4.6 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
Misc.Po171 Po174

Trouble Codes

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

car Vehicle Data

2005 Cadillac STS

VIN 1G6DC67A75
Engine4.6 L / 8 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
Misc.Po171 Po174

Trouble Codes

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