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P0420 combined w/ P0463

This is a discussion on P0420 combined w/ P0463 within the Computer & Tuning forums, part of the LSx Technical Help Section category; Recent SES, checked and found both P0420 along with P0463 (fuel level sensor circuit high input), thought that it was ...

  1. #1
    Junior Member Superado's Avatar
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    P0420 combined w/ P0463

    Recent SES, checked and found both P0420 along with P0463 (fuel level sensor circuit high input), thought that it was odd having both at the same time...
    Any suggestions would be greatly appreciated.
    Thanks in advance.

  2. #2
    Senior Member
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    I looked them up for my car, don't see where they'd be related to each other. Under P0463 it does ask if P1635 or P1639 are also set - so you can have more than one code/SES illimination. Hope this helps...

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