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1996 Cadillac DeVille Concours 4.6L MIL Lamp on
Posted to GM Driveability on 1/6/2000

Hi All, Have a problem child i need help on, codes po171 & po174 scanned system and everything checks ok, checked for vacume leaks including oil cap and dipstick with none found checked all sensors with scanner the only sensor that looked funny was the pos...

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car Vehicle Data

1996 Cadillac DeVille Concours

VIN 1G6KF5299T
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways
Misc.Obd11

Trouble Codes

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

car Vehicle Data

1996 Cadillac DeVille Concours

VIN 1G6KF5299T
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways
Misc.Obd11

Trouble Codes

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