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Thread: 0411 swap issues

  1. #1
    Junior Member
    Join Date
    Oct 2015
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    14

    Default 0411 swap issues

    I did my 411 swap today.

    97 k2500 7.4 with Whipple.

    It ran great before the swap. Now it runs like ass, I have to hold the gas to keep it running. Not throwing a CEL but I pulled codes p0103 and p0713. Connections look good on the pcm.

    Any ideas? I've got towing to do this week.

  2. #2
    Joe (Moderator) joecar's Avatar
    Join Date
    Apr 2003
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    28,403

    Default

    MAF is not being used (DTC P0103) so sounds like VE table is wrong.

    Was it tuned for the SC...?

  3. #3
    Junior Member
    Join Date
    Oct 2015
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    Default

    No, just a base tune. I'm still running the Whippletronics until I get my larger injectors.

  4. #4
    Junior Member
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    Oct 2015
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    Default

    I'd like to keep maf functionality. I may need a better base tune

  5. #5
    Junior Member
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    Oct 2015
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    Ok. Got back to the house. It's misfiring on all 8. I'm thinking a timing issue. I also noticed a small scorch mark on the pcm. I got it used, so for all I know, it was fried. I'm picking up another reman pcm today and going to go from there. Any other ideas? I know these have computer controlled timing.

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