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Thread: Troubles Logging "VE" (Alpha-N) fuel table for Trailblazer Vortec 4200 P10 ECU

  1. 02-12-2021 #1
    UglyBoost91
    UglyBoost91 is offline
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    Troubles Logging "VE" (Alpha-N) fuel table for Trailblazer Vortec 4200 P10 ECU

    Hey All,

    I'm trying to tune my 2005 Trailblazer 4.2L with the P10 ECU. I'm not totally new to tuning, but have only done SD vehicles on other platforms not on HP Tuners. This ECU has a "VE" table that is SD at low speed, and then a mish-mash of Alpha-N and SD Versus RPM, just shown as "% Load" at all higher engine speeds.

    I have no clue how the ECU calculates "% Load" or what PIDs I need to build a VCM Scanner Table for it to figure out my EQ Ratio for fuel tuning.
    Has anyone tuned one of these before and have a VCM Scanner setup file I could look at? I am just having a major mental block on how to go about this, and what I've read online makes no sense to me.

    I would be very grateful for any help...
    Last edited by UglyBoost91; 02-12-2021 at 03:32 PM.
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  2. 10-25-2021 #2
    CrazyCanadian
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    Did you ever get anywhere with this?
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