Thread: CEL problem codes, P0102, P0300, P1381 and a few more UPDATED!

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  1. #1 Re: CEL problem codes, P0102, P0300, P1381 
    GTP Level Member Rico's Avatar
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    The PCM uses data from the ABS to distinguish crankshaft speed variations from actual misfires p0300. If there is a loss of communication from the wheel speed sensors while P0300 has set a MIL then P1381 will set.
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  2. #2 Re: CEL problem codes, P0102, P0300, P1381 
    GTP Level Member buickman104's Avatar
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    Quote Originally Posted by Rico View Post
    The PCM uses data from the ABS to distinguish crankshaft speed variations from actual misfires p0300. If there is a loss of communication from the wheel speed sensors while P0300 has set a MIL then P1381 will set.
    Does that mean my crank sensor might be bad?

    plugs are Autolite104's with 5,000 miles on them and wires are PRJ with 15,000 miles. All my coil packs are new and a junkyard ICM because my last one went bad.
    2000 Bronze Metallic GTP
    Power :Gen V, 3.6 pulley, 3 inch down pipe, Power log, FWI,and DHP Power Tuner,
    Handling: Vogtland Springs, GMPP sway bars, STBS, 18" Konig backbone, CTS-V Front brakes and GXP rear brakes
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