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Thread: lq4 Tune help

  1. #91
    Joe (Moderator) joecar's Avatar
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    MAF DTC: good.

    ( without a MAF DTC the PCM still uses the MAF, and if the MAF is physically absent the PCM tries to calculate what the MAF would have read (which would usually be wrong) )

  2. #92
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    Default Finally got parts.

    Alrighty well I finally got my Torque converter and new chain. I replaced them and its like a whole new animal, however after starting it up I now get codes po103 and po200. So I have to check my injectors and harness for something that may have came unclipped. And then Hopefully redo calc.ve.Log_0006.efi Here is the log with DTC's.

  3. #93
    Joe (Moderator) joecar's Avatar
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    P0103: If you're not running SD, check MAF and its wiring. If you're running SD then the DTC is required.

  4. #94
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    Quote Originally Posted by joecar View Post
    P0103: If you're not running SD, check MAF and its wiring. If you're running SD then the DTC is required.
    Had a wire pull off injector 5, working on the maf issue. Seems like it's fine while logging, and my iat seems right (5 wire maf)

  5. #95
    Joe (Moderator) joecar's Avatar
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    P0103 is spefically MAF related, IAT has its own DTC's.

    To help troubleshoot it goto www.gearchatter.com and look at say 2000 Camaro DTC P0103, it will show you the factory diagnostic chart/procedure.

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