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    toyota yaris 1999 1.0 1SZ-FE Archived Message

    Posted by Mr W G LITTLE on October 23, 2008, 5:57 pm

    Engine light on fault code PO172 bank 1 to rich. A new lambda sensor has been fitted before cat and after cat.Cancel fault code and drive car engine light stays out leave to idle light stays out can be out for 2 to 3 days drive 2 to 3 miles next day return home let idle engine light comes on same fault code.

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