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1996 Buick Park Avenue OBD code P0172 any ideas

I know what the P01 refer to any idea about the 72

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Not sure what you are saying, but code P0172 is for rich fuel mixture bank one. The O2 sensor on bank one is telling the computer the mixture is too rich and the computer can not cut the injectors back enough to make the mixture lean.

Posted on Dec 11, 2012


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SOURCE: 1996 chevy truck 5.7L has codes P0172, P0172 were

p0172 is--system to rich ( bank 1). an oxygen sensor on bank 1, detected a rich condition ( to little oxygen in exhaust ) v6-v8 - v10 engines, bank 1 is the side of the engine that has # 1 cylinder. causes could be a vacuum leak in a hose, a dirty or bad maf sensor, or fuel pressure or delivery problems.

Posted on Sep 22, 2010

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