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I have a 1996 Dodge Intrepid 3.5L On my OBD2 scanner, code P0172 comes up and It says "System too rich (bank 1)" I was told I need a new O2 sensor. Is that what this means.
Join Date: Mar 2005
Location: Tiny Pebble, AR
Feedback: 44 / 100%
Could be an O2 sensor. With this code Bank 1 is the side of the engine cylinder #1 is, Which is the passenger side. It'll be the upstream O2 sensor closest to the cylinder head.
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