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Thread: Wheres all the timing going and new to hp

  1. #1
    Potential Tuner
    Join Date
    Jul 2017
    Location
    Valdosta, Ga
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    Wheres all the timing going and new to hp

    Hey guys I am new to the hp software and cant figure out why the ecu pulls timing down between 0 and 3 degree if i give it any throttle (10% or more) and of course it feels as if it is going to stall and doesn't want to go anywhere, even commanding 2nd gear I couldnt get it to rev past 3500 easy revving with light throttle. Scanner is showing no knock.

    I locked the absolute timing in scanner to 24 just for testing and it actually runs night and day different of course and it will rev to limiter at 5300. I dont want to make to many changes to my VE and cruise/part throttle until I can find where the timing is going.

    Can someone look at my tune and see which table I am overlooking that is pulling all the timing out?

    Ive made low and high timing tables the same
    set burst knock, AFR, ECT, IAT, cat and egr tables to 0
    and changed torque reduction to 0 in the trans tab

    My setup is
    72 C10 with a bone stock 5.3 (longtubes), 4l60 trans with stock converter.

    16:46:48, 16:47:30 are 2 places you can look at on the 1stdriving1
    at 17:33:06 you can see where I locked timing and it actually runs right
    2002ECUHeeter72C105.3Basehpforum1.hpt1stdriving1.hpl1stdriving2.hpl

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,557
    File is tuner locked.

    From the one log you have o2 sensors problem, they never switch and the short term trims are trying to remove 30% worth of fuel. They should not just stay in the 800-900mv range if they are working, they would be switching lean and rich of stoich (450mv). 900mv or high should just be under WOT.
    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
    Potential Tuner
    Join Date
    Jul 2017
    Location
    Valdosta, Ga
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    Sorry about the tuner lock, I attached another copy

    I noticed that also with the o2s but when I locked the timing afr came down(usin aem wideband) and bank 1 started cycling
    2 stayed around 8-900 though so I am going to check for exhaust leaks and or replace the sensors.2002ECUHeeter72C105.3Basehpforum1.hpt
    Last edited by 1359130161; 07-19-2017 at 02:53 PM.

  4. #4