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Thread: Po157-po137?

  1. 06-12-2008, 06:17 AM #1
    matt333cars
    matt333cars is offline
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    Red
    2000 WS6 Ram Air

    Po157-po137?

    I have a PO157 and a PO137 o2 codes in my 99 firebird. I changed the front o2 sensors, but still have hesitation and CEL comes on at times. Any suggestions?
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  2. 06-12-2008, 09:34 AM #2
    2001NBMZ28
    2001NBMZ28 is offline
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    Those codes are for low voltage on both REAR 02 sensors.
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