watertender3c Posted January 10, 2009 Report Share Posted January 10, 2009 I am getting a "check engine" message. Scanner comes up with a Code PO177-Fuel Composition Sensor Circuit Range/Performance.What is it, where is it, what does it cost to fix/replace, and where do I get one?Care is a 03 S80 w/ fifty thousand miles on the clock.Thanks for your help Link to comment Share on other sites More sharing options...
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