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2000 4.3 Gm V6 Starts Then Immediately Dies

Discussion in 'Builds and Fabricators Forum' started by 47v6, Sep 26, 2023.

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  1. Oct 7, 2023
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,470
    That's because if the magic smoke comes out of the Dohicky, your screwed...
     
    Warloch, Oct 7, 2023
    #21
    Danefraz and 47v6 like this.
  2. Oct 23, 2023
    Bob-The-CJ

    Bob-The-CJ Member

    Italy, Texas
    Joined:
    Nov 6, 2012
    Messages:
    386

    Just as FYI, that engine can run as low as 10lbs if the limits are set using something like HP Tuners. It does require more gas as the RPM's go up. I originally set my 4.3 up using all the stock electronics when I first put it in. I have HP tuners so that seemed like a good idea. It does work fine that way but I swapped over to a carb manifold with a FI Tech Go Street system to simply the wiring and handle the extra performance. I need that because I also put in 1.5 rockers and a hotter camshaft. My engine came out of a 97 1/2 ton truck but they are the same engine.
     
    Bob-The-CJ, Oct 23, 2023
    #22
  3. Oct 23, 2023
    Jw60

    Jw60 Cool school 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
    Joined:
    Apr 8, 2008
    Messages:
    4,819
    Was yours throttle body injection?
     
    Jw60, Oct 23, 2023
    #23
  4. Oct 23, 2023
    Bob-The-CJ

    Bob-The-CJ Member

    Italy, Texas
    Joined:
    Nov 6, 2012
    Messages:
    386
    Mine was the system that used the spider coming off one injector. The TBI is the most versatile of them all. If I had TBI I probably would have stuck with it.
     
    Bob-The-CJ, Oct 23, 2023
    #24
    Jw60 likes this.
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