0411

  1. T

    0411 Swapped 96 C1500 No longer starts

    Hi I swapped my 96 c1500 with a 5.7 Vortec to a 0411. I swapped it and it started and ran not perfect but enough I could drive I parked it. Then the next day I drove it into my garage to clean up my cables and double check my pins. I went to start it and it cranked but it won't start it smells...
  2. C

    Fuel Guage Woes - ‘99 Yukon with 4.8

    Have a 99’ Yukon that I swapped in an 07’ 4.8, 2002 harness and a 411 pcm, tuned with Tunerpro. Having issues with getting the fuel gauge to work. Tried various pwm settings. Gauge output is on Pin 38 Red, and have continuity to the cluster pins. When I look at the fuel level with Tech2Win, it...
  3. D

    Ls computer for 98 5.7 vortec

    Hey guys I know it’s probably been discussed but I’m looking for help finding and installing an LS 0411 computer on my 98 C3500 5.7 4L80e and I want to know what years/models to keep an eye out for and even some info on tuners in northern MI. I’m learning and really want to know more.
  4. pl813239

    Benefits of adjustable fuel pressure reg for mpfi?

    What would be the benefits of an adjustable fuel pressure regulator on a mpfi spider? More specifically while also having a cam, headers, and tuning capabilities. Appreciate your input.
  5. chris2323

    Increasing Fuel Pressure on Spider Injectors

    Does anyone have any experience increasing fuel pressure on the spider injectors? Its my understanding that there is a torx adjustment screw on the fuel pressure regulator. Some people have said they were able to increase pressure up to 70psi. Currently seeing over 100% injector duty cycle at...
  6. Jaxson Frye

    Using a break in stand

    I searched through some threads but couldn’t find what I need so… I would like to run my freshly built 350 (now a 355ish) on a break in stand but I’m not sure what to do for wiring, I still need to do a couple things like distributer, MPFI conversion with higher horse power support, powder...
  7. T

    2000 L29 454 Build

    This is my first post here. The Truck this motor will be going into is my 1998 Chevy K3500 Crew Cab Dually with 140k miles. The 454 that's in it is full of sludge and the oil and oil filter always has metal flakes in it. I've been driving it like this for 7 years, the metal in the oil is...

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