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P0172 Diagnostic Trouble Code Discussion for May 2020

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
1999 Ford E-350 Super Duty 6.8L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1FDWE37S4X
P0172: Bank 1 Rich. ... with both banks reading rich. When this vehicle initially came in, it had many more codes in the ECM including P0135, P0141, and P0155 which are all 3 02 sensor heater circuit codes, p1132 and p1152 which is both upstream 02 lack of switching indicati...
May 18, 2020
1999 Ford E-350 Super Duty 6.8L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy, MIL Lamp on VIN: 1FDWE37S4X
P0172: Bank 1 Rich. ... with both banks reading rich. When this vehicle initially came in, it had many more codes in the ECM including P0135, P0141, and P0155 which are all 3 02 sensor heater circuit codes, p1132 and p1152 which is both upstream 02 lack of switching indicati...
May 19, 2020