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engine miss

  1. Low Idle and perfect miss all RPMS

    NG900 & OG9-3 Workshop
    00 9-3 automatic. Check eng light came on codes showed misfires.. changed IDM, plugs looked good, reset ECU; drove fine two days, (no light no issue) now same prob with 1251 and 1260 codes only. Must hold accelerator down to start and 30 seconds after or will stall. I was advised to calibrate...
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