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Thread: First time tuner. Help me out please

  1. #1
    Potential Tuner
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    Question First time tuner. Help me out please

    I have a 2013 Silverado with 5.3. Deleted DOD and VVT and installed a Sloppy Stage 2 cam with eBay longtubes no cats. It actually idled on first start. Ive been messing around with the tune for a week or so now. Ive taken parts from several different uploads on here and the tune repository. Would you guys look at it and tell me what I need to change? This is all idle with some throttle blips. I had to take my cold air off as it was throwing my fuel trims off and was maxed out LEAN.
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  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
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    Rogers, MN
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    Get a wideband o2 sensor, you have to have one for tuning something like this. If the intake removal stopped the extreme fuel trim situation start reading up on MAF and VVE tuning for that new camshaft. The vcm scanner section has a few write up's in the sticky pages for MAF/VVE tuning with a wideband.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

  3. #3
    Potential Tuner
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    Feb 2020
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    Elmore, Alabama
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    Thanks for the reply. So does it look decent for idle or do I need a wideband for that as well?

  4. #4
    Potential Tuner
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    Mar 2020
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    Your LTFT and STFT are maxed out! adjust them and log it.

  5. #5
    Advanced Tuner
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    Mar 2011
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    Since you are new, it'll be best to do this in steps.
    As you said, the factory cold air intake is the best starting point (or one of the good aftermarket intakes...Airaid, CAI, Volant, will all be good choices on your truck and not cause any major issues.)

    Michael Bray just typed this response on another thread similar to yours. It was a first time tuner that needed a good starting point. Hopefully he won't mind if I share it with you as well. It's applicable to your application.

    under airflow-dynamic set high rpm disable to 200, and re-enable to 100
    under idle, add 250 rpms to all idle tables
    under idle, base running airflow, double the table, under start up airflow, triple the table(this will overshoot idle airflows, but will keep things happy till airflow is correctly adjusted