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Thread: '00 Silverado won't stay running

  1. #1
    Tuner in Training
    Join Date
    Sep 2016
    Location
    Greater Memphis Area
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    14

    '00 Silverado won't stay running

    I have a '00 silverado. I haven't been able to get it to stay running. I have it SD density mode and have been trying to dial in the LTFT on the Primary VE Table and can't really tell if it was that far out and I need to keep working on VE Table and the Base running airflow or if something else is wrong. I had to stop where I did because the gauge cluster dropped oil pressure, so switching over to a mechanical gauge before changing the oil pump as this would be the 3rd pump on the refreshed motor. TIA!
    Specs:
    5.3L> .040 over
    "head work" (larger intake valves)
    TSP Cam:
    238/242
    .600 IN/Ex
    LSA 112
    "CAI"

    Stock Intake manifold
    stock exhaust
    stock TB
    Stock sensors
    Stock Tq converter
    Attached Files Attached Files

  2. #2
    Tuning Addict blindsquirrel's Avatar
    Join Date
    Apr 2017
    Location
    Meridian MS
    Posts
    7,448
    Don't log any MAF channels while in SD mode, that's asking the PCM to look at things you've told it not to look at...

  3. #3
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,533
    Why would you even bother with fuel trims on a setup like this?

    You need to use a wideband to really dial this in.

    Also you'll need larger injectors, not really worth it to dial it in on 25lb/hr when you need 31lb/hr or larger injectors for that camshaft.
    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
    Sep 2016
    Location
    Greater Memphis Area
    Posts
    14
    Since the truck still won't idle w/out throttle is this because the Base running Airflow still needs more, or because of the Fuel?
    Thanks for info on the injectors!