96 sts check engine light on but no codes
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Northstar Engines and System Technical Discussion Discussion, 96 sts check engine light on but no codes in Cadillac Engine Technical Discussion; Yep kind of funny check engine is on, but when i check for any codes all are in history. any ...
  1. #1
    92nsx's Avatar
    92nsx is offline Cadillac Owners Fanatic
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    96 sts check engine light on but no codes

    Yep kind of funny check engine is on, but when i check for any codes all are in history. any ideas. reset computer, clear history? If so how can i clear all history codes.

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  3. #2
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
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    Re: 96 sts check engine light on but no codes

    One of the history code was set in the last 3 ignition cycles and it is likely an emission related code that turned on the light. The light will go out after 3 ignition cycles if the fault is not detected again. Clearing the codes will also clear the historical codes.

  4. #3
    zonie77 is offline Cadillac Owners Connoisseur
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    Re: 96 sts check engine light on but no codes

    Ranger is exactly right. Clear the codes and see which come back.

    By the time you stop the car and check the codes it goes into history.

  5. #4
    Overheated is offline Cadillac Owners Member
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    Re: 96 sts check engine light on but no codes

    The Sticky at the the top has the link if you want to Clear Codes. Or you can run the Codes before you shut it off.

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