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P0170 Diagnostic Trouble Code Discussion for January 2007

Fuel Trim Lean Or Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0170
Help Request Posted
2001 Mercedes-Benz CLK55 AMG 5.5L Poor Idle Quality, MIL Lamp on VIN: WDBLJ74G51
P0170: fuel trim bank 1. The vehicle came in last week and the customer wanted a "B" maint. Everything seemed to go OK and vehicle was delivered to customer. After a day the idle seemed to be getting rough. A couple of days later the "check engine" came on and we got t...
January 04, 2007
1999 BMW 328i 2.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WBAA5333XF
P0170: fuel trim mal function. hi bmw techs i got this 328i with a bad misfire from intake side that suonds like the engine is going to brake something i change coil from another good engine made no difference ,air flowmeter also replaced still the same. plugs dont look like injector leakin...
January 17, 2007