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Thread: MAF only C6 Z06 problems

  1. #1
    Potential Tuner
    Join Date
    Jan 2014
    Posts
    8

    MAF only C6 Z06 problems

    I am tuning a stroked C6 Z06 that is having an issue. I tuned the entire VE table and car runs great in SD only. However on MAF only or Blended the car has a bad lean condition at the transition area from the low to high MAF table. All other areas of the MAF table are within 1 to 2%. I have tried more and less timing and also more and less fuel. This is being verified by the dyno wideband and a NTK wideband. What is interesting is the cars STFT sees no correction in that area of 5600hz to 5900hz. Any ideas to check?

    Thanks

  2. #2
    Tuner JnJSpdShop's Avatar
    Join Date
    Aug 2005
    Location
    Western New York
    Posts
    195
    Post your tune file? Intake setup?

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  3. #3
    ^what he said. Also, silly thing, but double check that on the low and high maf table where the transition cell is, that they match.
    ie. last cell on low table is same hz as first cell on high table. Make sure you don't have different numbers in there that are throwing the pcm for a loop.

  4. #4
    Potential Tuner
    Join Date
    Jan 2014
    Posts
    8
    Found the silencer pad was loose in the hurricane intake and kept skewing the numbers each log. Almost drove me crazy!