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Thread: Open Loop???

  1. #1
    Advanced Tuner Blue02WS6's Avatar
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    Jul 2006
    Location
    Central Florida
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    319

    Open Loop???

    Can someone explain why when I set the "Fuel" "Closed loop enable" "ECT vs IAT" to max and set "MAF fail high" to 0, I still get info from the MAF while logging the VE as I got different numbers after I unplugged the MAF.
    2002 WS-6, Built A-4, 3000 stall, Lid and K&N, ported TB, 220/224, .551, 114 LSA, roller rockers, LT's, 2.5" true duals with X-pipe, Koni adjustable front and Bilstein rears with Hotchkis springs, front bar and bushings, welded SFC's, boxed LCA's., Midnight Blue trimmed in silver, silver face gauges, custom hood bird, HPT (with lot's of tuning)

  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
    Location
    Rogers, MN
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    13,533
    I've followed this guide for tuning before, some of it is useless if you arent running a cam but to get it into sd it works.

    Also you can never log anything maf related in the table display if you are trying to run in sd.

    http://michigansnowmobiler.com/hptun...ons%20rev2.pdf
    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.

  3. #3
    Advanced Tuner Blue02WS6's Avatar
    Join Date
    Jul 2006
    Location
    Central Florida
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    Thanks for the link, I will check this out.
    2002 WS-6, Built A-4, 3000 stall, Lid and K&N, ported TB, 220/224, .551, 114 LSA, roller rockers, LT's, 2.5" true duals with X-pipe, Koni adjustable front and Bilstein rears with Hotchkis springs, front bar and bushings, welded SFC's, boxed LCA's., Midnight Blue trimmed in silver, silver face gauges, custom hood bird, HPT (with lot's of tuning)