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P0173 Diagnostic Trouble Code Discussion for September 2009

Fuel Trim Lean Or Rich (Bank 2)

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Trouble Ticket Help Requests for DTC P0173
Help Request Posted
1998 Mazda Millenia S 2.3L MIL Lamp on VIN: JM1TA2223W
P0173: Adaptive Fuel Trim Too Rich or Too Lean (Bank 2). This vehicle has been in two other times for these same codes. the first time we found the maf duct broken. The second we replaced both pre cat. o2 sensors. Now it is back with the same codes no running problem the only complant is the mil. At idle the pre o2 ...
September 22, 2009