99 seville sls

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Northstar Engines and System Technical Discussion Discussion, 99 seville sls in Cadillac Engine Discussion; my 99 sls keps shutting off out of nowwhere, no sign of stall or anything. i checked for code and ...
  1. #1
    Senseless is offline Cadillac Owners Member
    Join Date
    Jul 2006

    99 seville sls

    my 99 sls keps shutting off out of nowwhere, no sign of stall or anything. i checked for code and the only code showing ic pcm p1599. Could anyone lead my in the rigt directions of fixing the problem.

    > I checked the FPR , and found nothing leaking.
    > With the ignition key ON ( ENGINE OFF), the only light come on is, { OIL, BATTERY, SERVICE ENGINE SOON}.

    What's the chances of the pcm is bad, or how should i know.

    Thanks for the help if anyone can help me.

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  3. #2
    rbrandon's Avatar
    rbrandon is offline Cadillac Owners Member
    Automobile(s): 99 STS
    Join Date
    Jul 2004
    Brooklyn, NY

    Re: 99 seville sls

    check both crank sensors

  4. #3
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Woodstock Ill.

    Re: 99 seville sls

    CPS (Crankshaft Position Sensors)

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