what is cousing code 172

25

Asked by Scott Aug 19, 2013 at 03:41 AM about the 2004 Dodge Neon R/T Sedan FWD

Question type: Maintenance & Repair

ive changed my fuel regulator , coil, plugs, made sure no leeks from the header to the muffler.

1 Answer

2,695

could just be the upstream o2 sensor needs replaced. p0172 is a rich condition in the upstream o2 sensor

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