Question about 2002 Mercury Villager

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Check engine light on

2002 villager with 3.3 throwing engine code of po172 says system too rich bank 1 what does this mean and how do I fix it?

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  • yadayada
    yadayada May 11, 2010

    do u have a OBD 2 scanner with live data capabilities?

  • Anonymous Mar 14, 2014

    Check engine lite came on,scanning it gave me the code po172

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  • 290 Answers

Had the same code with an Expedition. Try cleaning the MAF sensor with some carb cleaner. Here is more info on the code:
http://www.aa1car.com/library/ford_lean_codes.htm

Posted on Apr 13, 2009

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