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Thread: Changing/adjusting commanded eq

  1. #1
    Tuner in Training
    Join Date
    Aug 2019
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    Changing/adjusting commanded eq

    08 tbss turbo 408. Took it out for maiden voyage and some data. At low speed or cruise situation, my commanded eq ratio is about .85 and I'm tuned pretty close with +/-5% or so right now. However, shouldn't my commanded be somewhere around about .95-1.0 for idle or part throttle? How would I go about getting the commanded value dialed in so I'm not chasing my fueling on a rich cmd situation?

  2. #2

  3. #3
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
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    Rogers, MN
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    You didn't set your open loop EQ ratio to 1.00 for intake valve temps above like 100-130 degrees. This is why it won't command stoich like it needs to.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  4. #4
    Tuner in Training
    Join Date
    Aug 2019
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    12
    Thank you. I was diggin through it all and saw those tables. It was just a base tune from a buddy with a similar build. So I'll try that maybe today. Thanks again