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P0170 Diagnostic Trouble Code Discussion for January 2011

Fuel Trim Lean Or Rich (Bank 1)

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Trouble Ticket Help Requests for DTC P0170
Help Request Posted
2001 Mercedes-Benz E430 4.3L MIL Lamp on VIN: WDBJF70J91
P0170: fuel trim b1. ... engine light on. pulled a p0170- fuel trim b1. FTs were at +25%. smoked intake and found no leaks. i replaced the maf with a bosch unit as i have fixed many of these cars this way in the past. test drove car and FTs slowly ...
January 13, 2011