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Thread: Car will not idle...

  1. #1
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    Default Car will not idle...

    Can someone check this tune? Cos3 2000 vette upgraded to 2002 OS then COS3. Going S/D trying to do VE tune but will not Idle. 427ci Auto, Car idles when cold but kills right after and will not idle again.
    Did I do or not do something correct?

    johnbcos3.tun

  2. #2

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    look at your {B3647} "Commanded Fuel vs RPM" table for a start

  3. #3
    Joe (Moderator) joecar's Avatar
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    Also, fix these:

    Out of Range calibration summary: 09:07:19 am, Wednesday Jul 27, 2011

    EFILive Custom Calibrations
    {A0001} Forced Octane Scaler Percentage, was out of range when loaded.
    {A0002} Octane Scaler Limiter, was out of range when loaded.
    {A0009} Boost VE Table, contained one or more out of range values when loaded.
    {A0010} Boost Timing Table, contained one or more out of range values when loaded.

    and also A0012, A0013.


    See here:
    Look at B3647, as vxchev8 said above, this table is now incorrect for the ECT -> RPM axis change.

  4. #4
    Joe (Moderator) joecar's Avatar
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    Sanity check:
    - vehicle is 2000 Vette...?
    - what was your starting OS id...?

  5. #5
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    OS12584929


    2000 vette

  6. #6
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    Thank you for looking at the file. I did all the changes you suggested and still no Idle. Should I have to drill a hole in the TB? Here is the changed file. Thanks
    COS3.tun

  7. #7
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    You shouldn't have to drill a hole. If you think you need more idle air, increase that, but don't drill.

  8. #8
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    noticed MAP reading very high when I keep the throttle opened to stay running...around 10 at 1300RPM What would cause this?

  9. #9
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    Post a log at idle.
    1997 S10, 06 trailblazer SS LS2 swap, 4L70E trans, 76mm turbo. Factory ZQ8 suspension. 3.08, G80 w/a zexel. With a 0411 swap.

  10. #10
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    log
    COS3.efi

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