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P0172 Diagnostic Trouble Code Discussion for December 2016

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2009 Chevrolet HHR LT 2.2L MIL Lamp on VIN: 3GNCA23BX9
P0172: Fuel system rich. ... on. No drivability concerns. P0172 stored. Long term fuel trim at -25 and short term between -15% and -30%. Vehicle is a flex fuel and customer says they never use e85. Took a fuel sample anyways because, well customers always tell the truth, and alcohol c...
December 09, 2016
2005 Ford F-150 FX4 5.4L Excessive Emissions, Stall, Misfire, MIL Lamp on VIN: 1FTPW14575
P0172: system rich bank 1. As I stated the customer attempted his own repair prior to my seeing this vehicle.I replaced the o2 sensors and cleaned the MAF sensor the truck ran better .I recomended a new MAF the customer decided to do this himself as it was a K&N part.I also had reco...
December 10, 2016
2010 Chevrolet Suburban 1500 LTZ 5.3L Excessive Emissions, No Start VIN: 1GNUCKE04A
P0172: fuel trim system rich bank 1. ... problem.it had 12 codes in it.[...] trim cylinder bal bank2 p0521 engine oil pressure sensor performance-p0573 brake switch circuit-high.p1380 misfire detected-rough road data-p0053 h02s heater bank 1 sensor2-p0054 h02s - p0060 H02s heater resistance bank ...
December 20, 2016
2010 Chevrolet Suburban 1500 LTZ 5.3L Excessive Emissions, No Start VIN: 1GNUCKE04A
P0172: fuel trim system rich bank 1. ... problem.it had 12 codes in it.[...] trim cylinder bal bank2 p0521 engine oil pressure sensor performance-p0573 brake switch circuit-high.p1380 misfire detected-rough road data-p0053 h02s heater bank 1 sensor2-p0054 h02s - p0060 H02s heater resistance bank ...
December 21, 2016