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P0172 Diagnostic Trouble Code Discussion for January 2015

Fuel System Rich (Bank 1)


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Trouble Ticket Help Requests for DTC P0172
Help Request Posted
2007 GMC Sierra 1500 WT 5.3L Excessive Emissions, MIL Lamp on VIN: 2GTEK13M57
P0172: Fuel Trim System Rich (Bank 1). MAF replaced with harness smoked intake-found no leaks come off idle fuel trims are great- idle engine long term go high short term are perfect. gotta have a vacuum leak somewhere!!! pulled upper intake manifold -found gaskets were deformed. problem still ther...
January 16, 2015
2007 GMC Sierra 1500 WT 5.3L Excessive Emissions, MIL Lamp on VIN: 2GTEK13M57
P0172: Fuel Trim System Rich (Bank 1). MAF replaced with harness smoked intake-found no leaks come off idle fuel trims are great- idle engine long term go high short term are perfect. gotta have a vacuum leak somewhere!!! pulled upper intake manifold -found gaskets were deformed. problem still ther...
January 22, 2015
2001 Toyota Camry CE 2.2L Poor Idle Quality, Hesitation, Cuts out, Stall, MIL Lamp on VIN: 4T1BG22K11
P0172: Fuel System Too Rich (Bank 1). Hello and thanks ahead of time. My tech replaced the head gasket on this car and ever since been getting a rich code and no accelleration. AF and 02 bothe indicate rich condition tested TPS ok IAC seams to function normal.This car came to me with gasket blown ...
January 27, 2015
2004 Mercedes-Benz C230 Kompressor 1.8L Excessive Emissions VIN: WDBRN40J44
P0172: . good morning guys. well, again I need your help. working on 04 mercedez c230 w/supercharge. customer has replace up and down oe o2 sensor, other shop found oil in Ecm , o2, and cam adjuster connector. they clean them good, and they scan for po172 which is rich...
January 31, 2015