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1996 Chevrolet Impala SS 5.7L Poor Idle Quality, Surge, Stall, Runs Rich
Posted to GM Driveability on 8/20/2018 36 Replies

We could really use some help on this one we have exhausted every angle to this problem. This car came from another shop were they have replaced almost everything. The problem is at idle it runs super rich both banks maxed out negative. We have checked for...

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car Vehicle Data

1996 Chevrolet Impala SS

VIN 1G1BL52P0T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Stall, Runs Rich
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)
Open Help Request

car Vehicle Data

1996 Chevrolet Impala SS

VIN 1G1BL52P0T
Engine5.7 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Surge, Stall, Runs Rich
OccursAlways

Trouble Codes

P0172Fuel System Too Rich (Bank 1)
P0175Fuel System Too Lean (Bank 2)