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Thread: Cold Start Never first attempt, always second....

  1. #1

    Cold Start Never first attempt, always second....

    I seem to have a lot of unique challenges with tuning that cant be solved but wanted to try another one. In CL MAF only mode tuning a 2008 2.2 with added supercharger. Car will never start first attempt (up to about 4-5 seconds crank) but will always start second attempt after about a second of crank time. Anything i should be looking for in the tune?

    I have tried the base settings(in CL MAF Only mode) and gotten this result.
    I have tried increasing startup airflow and gotten this result.
    I have tried increasing base airflow ETC multiplier and gotten this result.

    Thing to note. After i had originally (before going CL MAF Only) tuned VVE only (no maf), then added the MAF (blended MAF and VVE) it started up first time every time. Its not until i went CL MAF only by changing the dynamic airflow to 200 RPM fail that this has been consistent.

    Any ideas?

  2. #2
    Advanced Tuner ZeroBoostBuick's Avatar
    Join Date
    Aug 2008
    Location
    S.W. Ontario Canada
    Posts
    269
    Post your tune please.