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Thread: 2001 5.7 v8 mpi ohv

  1. #1
    Junior Member Spuco's Avatar
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    Default 2001 5.7 v8 mpi ohv

    Hi,
    Just picked up a 2001 G3500 Express Cargo Van w/ a 5.7 V8 for work.
    Can I read, flash, and scan this vic. with my V2.
    And how do i find out what ECU or PCM i have.
    not sure if i'm asking the right ?
    Can someone fill me in?
    2500 HD 09 Silverado LMM/CC/LB/Z71/LT1
    EFILive w/ DSP5 (Duramaxtuner.com)

  2. #2
    Lifetime Member
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    Its a LS1 512kb PCM. Use the LS1 99-08 Controller selection to read the tune out.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  3. #3
    Junior Member Spuco's Avatar
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    Quote Originally Posted by ScarabEpic22 View Post
    Its a LS1 512kb PCM. Use the LS1 99-08 Controller selection to read the tune out.
    Thank You,
    Is it safe to say this is the 255hp 5.7 ver. over the base modle 5.7?
    2500 HD 09 Silverado LMM/CC/LB/Z71/LT1
    EFILive w/ DSP5 (Duramaxtuner.com)

  4. #4
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    Quote Originally Posted by Spuco View Post
    Thank You,
    Is it safe to say this is the 255hp 5.7 ver. over the base modle 5.7?
    The 255hp@4600rpm 330 lb/ft torque @ 2800rpm L31 Vortec 350 IS the base 350. There is no optional 350 in those years.

    peace
    Hog
    1997 rcsb stock L31 longblock, Marine Intake with 28# EV6 injectors, L35 2700 stall TC,Hooker LT's 2.007 60ft

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