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3400 Tuning - ECM Compatability

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  • #1

    3400 Tuning - ECM Compatability

    I have a 3400 in my rockcrawling buggy that is currently using all the wiring and computer from a '96 Lumina APV. The engine has a decent amount of mods (ported 3500 heads and intake, custom cam, 65mm throttle body, headers) and it runs ok, but not right.

    From what I have heard and read, HPT software can not tune my Lumina ECM. Is there any reason I can't swap my ECM out with one from a '97 Grand Prix so it can be tuned?
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  • #2
    a '97 PCM from most GM's will directly plug into the '96 harness, and you can tune away . That is how my Olds is setup. Try to find one from a '97 minivan so at least you could run it as is for a little bit.
    Brian

    '95 Cutlass Supreme- "The Rig"
    3400 SFI V6, 4T60e
    Comp Cam grind, LS6 valve springs, OBD2 swap, Tuned
    2.5" DP/ 2.5" dual exh/ Magnaflow Cat/ crap mufflers/ 3500 Intake manifold/ 65mm TB
    TGP steering Rack/ 34mm Sway Bar/Vert STB/ KYB GR2's

    '08 Chevy Trailblazer SWB 1LT "Smart Package"- LH6 5.3L V8/4L60e, A4WD

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    • #3
      I thought I responded to this? Did posts get deleted again?
      sigpic New 2010 project (click image)
      1994 3100 BERETTA. 200,000+ miles
       16.0 1/4 mile when stock. Now ???
      Original L82 Longblock       with LA1, LX9, LX5 parts
      Manifold-back 2.5" SS Mandrel Exhaust. Hardware is SS too.

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      • #4
        Its posted in 2 areas (Computer Tuning being the other, that you posted in). I just never got around to closing one, or merging them...
        -Brad-
        89 Mustang : Future 60V6 Power
        sigpic
        Follow the build -> http://www.3x00swap.com/index.php?page=mustang-blog

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