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Thread: Running extremely rich in boost/breaking up

  1. #21
    Joe (Moderator) joecar's Avatar
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    Team208 is saying that you want to see a MAF DTC

    ( without this, the PCM tries to calculate what MAF should be, and it's always wrong ).

    Get this sorted out first.
    Last edited by joecar; April 23rd, 2018 at 08:50 AM.

  2. #22
    Joe (Moderator) joecar's Avatar
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    Also, on your next log, remove pid HO2S12, and add HO2S21.

  3. #23
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    The injectors you listed are flex fuel 50 lb at 4 bar.......

  4. #24
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    They are GM Delphi injectors, Static Flow Rate at 43.5 PSI: 440cc/min, 42lbs/hr. I

  5. #25
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    Yes 50 lb at 4 bar

  6. #26
    Joe (Moderator) joecar's Avatar
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    Click image for larger version. 

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  7. #27
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    50 at 4 and you are saying you are running stock pressure....... Tune shows 42s on a return style system with stock regulator.

  8. #28
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    There is too many BASE TUNE SETTINGS not setup properly to even begin to chase something wrong. The tune is fat, the injectors data is wrong. Have to have the right base to build off of, if not, you will be chasing your own tail the entire process.

  9. #29
    Joe (Moderator) joecar's Avatar
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    Measure rail pressure with FPR reference disconnected (it should be 58 psi, i.e. 4 bar);

    42 * sqrt(4/3) = 48.5 lb/hr (close enough to 50 lb/hr) = 6.11 g/s

  10. #30
    Joe (Moderator) joecar's Avatar
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    He would be better to start with a stock tune, and add in only the edits required.

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