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2008 Chevrolet Impala LT 3.5L MIL Lamp on
Posted to GM Driveability on 2/26/2019 15 Replies

The fuel composition keeps going up on this car. We have reset it several times withing the last four months and stressed to the customer that they only use E10 or E15 blended gas. It goes for a month or so and resets P0172 rich fuel. When I check the comp...

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car Vehicle Data

2008 Chevrolet Impala LT

VIN 2G1WT58K78
Engine3.5 L / 6 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
Message Closed

car Vehicle Data

2008 Chevrolet Impala LT

VIN 2G1WT58K78
Engine3.5 L / 6 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)