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Thread: Dodge ram 5.7 HEMI SC rich on idle

  1. #1
    Potential Tuner
    Join Date
    Aug 2019
    Posts
    1

    Dodge ram 5.7 HEMI SC rich on idle

    Hello community,

    we have tuned Procharged hemi with 80lb Siemens Deka injectors and it runs good starting form 1100-1200 RPM, but it's very rich at idle.
    The AFR gauge shows 11.5 when it starts and 10.4 when warmed up.

    The setup is:
    - Procherger blower
    - Siemens Deka 80 injectors
    - DW400 fuel pump
    - fuel pressure regulator

    Appretiate for any help.

    see log and tune attached:
    Attached Files Attached Files

  2. #2
    Tuner
    Join Date
    Feb 2019
    Location
    Owensboro, KY
    Posts
    80
    cant look at the tune or log right now but... have you checked your cold start enrichment?? and also if your getting high fuel trims the injector data may need to be tweeked in those areas?? Just a thought without looking at the data.

  3. #3
    Tuner in Training
    Join Date
    Mar 2018
    Posts
    26
    Your Inj PW Offset table looks stock. Here is what I use.

    5 - 3.912
    6 - 2.616
    8 - 2.144
    10 - 1.264
    11 - 1.104
    12 - .952
    13 - .808
    14 - .704
    15 - .600

    Add Cylinder 1 Fuel Mass to you logs. That will help with the adjusting the injector data.