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P0172 Diagnostic Trouble Code Discussion for August 2018

Fuel System Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1996 Chevrolet Impala SS 5.7L Poor Idle Quality, Surge, Stall, Runs Rich VIN: 1G1BL52P0T
P0172: Fuel Trim System Rich (Bank 1). 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...
August 20, 2018