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Thread: First time start up, too much fuel. 350 chev 7747,

  1. #16
    Fuel Injected!
    Join Date
    Sep 2012
    Location
    washington indiana
    Age
    69
    Posts
    884
    unhook 1 injector at a time while tring to start it, it sounds like something going on with the map sensor or its wireing.

  2. #17
    Carb and Points!
    Join Date
    Apr 2013
    Posts
    9
    Turns out it was a bad temp sensor. I have to give credit to Bill at BinderPlanet for helping out over there too and for having this great spreadsheet to check voltages!

    This issue solved... on to the next one......

  3. #18
    RIP EagleMark's Avatar
    Join Date
    Feb 2011
    Location
    North Idaho
    Age
    64
    Posts
    10,477
    D'oh!

    Yeah when the CTS goes bad it reads -40C and ads fuel for choke like crazy! Data would have shown that...

    1990 Chevy Suburban 5.7L Auto ECM 1227747 $42!
    1998 Chevy Silverado 5.7L Vortec 0411 Swap to RoadRunner!
    -= =-

  4. #19
    Fuel Injected!
    Join Date
    Sep 2012
    Location
    washington indiana
    Age
    69
    Posts
    884
    need to employ a good tunerpro program.

  5. #20
    Carb and Points!
    Join Date
    Apr 2013
    Posts
    9
    I bought the AutoProm and TunerPro RT in the APU1 package from Moates.... Just don't know how to use it yet


    It'll start now but runs like poop. I did just figure out how to get logging enabled and thought I was emulating through the AutoProm but not sure. Unfortunately, the truck is 40min from my house and can only work on it in spurts. My friend is the fabricator and owner and I agreed to help him with this project (or better said, I was "assigned" the wiring and computer work) So...

    I'm going to do some more reading and get on the tuning side of the project. I'll leave this thread intact with the no-start problem so it's easier to search to help others who may have the same problem.

    Thank you for the assistance so far, couldn't have done it without you guys and the guys at Binder Planet.

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