po172 code for chevy aveo


Asked by Sep 01, 2012 at 10:26 PM about the 2007 Chevrolet Aveo LS

Question type: Maintenance & Repair

what causes po0172 code for chev aveo ad how to fix the problem

1 Answer

Tom Demyan

P0172: An oxygen sensor in bank 1 detected a rich condition (too little oxygen in the exhaust). Bank 1 is the side of the engine that has cylinder #1. One or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty. There could be a vacuum leak. There could be a fuel pressure or delivery problem.

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