Fitech Grounding Issues. How and which wire on my painless harness do i connect to 86
How and which wire on my painless harness do i connect to 86 on the relay with? I am not putting a manual switch as im using the fitech control module How did you check spark? Do you have a spark tester, or were you just grounding plug wires to see spark? Can you backtrack through changing the header and speedometer? Don't be offended, sometimes it's something as simple as a missing ground connection, or a similar problem that can really stump you. Apr 19, 2010 · To recap my struggles with the FiTech EFI have been ongoing since I installed the unit. How to install a Digital Stepper Motor fuel pressure gauge by Autometer, and fix my oil gauge line! FiTech Starting Issues - How to Diagnose it, and fix it. Recognizing these common issues, from communication problems to self-learning limitations, helps you troubleshoot more effectively. Just splice into the compressor 12V to the relay (Pin 86) and ground 85, so the compressor is activating the relay coil. Fitech has no ground wire provision to battery so it basically grounds to the carb studs - then relies on a good ground from engine-to-body. May 31, 2021 · Fuel Injection, Carburetion & Fuel System - Fitech issues - fuel pump power control - A while back fitech had a sale for a kit that included a ?force fuel? fuel pump which i jumped on. Apr 19, 2025 · Fitech Troubleshooting Guide: Expert advice on seeking professional help, leveraging community resources, and navigating common issues. FiTech Go EFI System is the industry's most ad- These instructions cover the Basic Kit installation and vanced throttle body EFI system and also the easiest to setup as well as general instructions for both of the op-install. Jun 1, 2019 · Obviously, I had an issue. Sep 21, 2017 · I have an Old Air Products Hurricane system. Does your Fitech have live data and diagnostics? Jul 24, 2019 · I just run the pump off a relay triggered by my ignition, and at first returned the excess fuel from the fitech, until the internal regulator went out, and then put in my external pressure regulator, capped off the fitech return, and returned the fuel from my regulator. Jul 10, 2017 · The voltage drop could be a ground issue. Every FiTech system is meticulously tested for functionality before it leaves our Riverside, California facility. Jan 19, 2017 · I've reprogrammed at least 6 times, made hundreds of adjustments (as advised by FiTech), added more grounding straps, wrapped the system wires in 3M shielding tape (to prevent any possible electrical interference issues), checked/rechecked/double rechecked timing (all good), checked vacuum (a bit low at round 7-8 at idle) but I've never owned a Nov 26, 2017 · I then soldered a ground wire on to the shielding that was later attached to the chassis. Is wired per FiTech schematic #12. Does your Fitech have live data and diagnostics? Aug 4, 2019 · I had a similar hot start problem on the wife's go street 600. I’m using it in a gen 3 lq4, 243 Feb 24, 2016 · Hi All, I've read other threads about the FiTech EFI, and this is something I'm going to do shortly. But don’t worry—understanding these issues is the first step to fixing them and getting your vehicle back to peak performance. Once that was done I pulled the blue wire out of the FiTech harness and installed the shielding. Please list your engine combo, truck, Fitech system, settings and any adjustments or issues you are having. Then run a ground to 87 and 30 to your black wire, so that when the relay closes, Pin 30 gets a ground. Jul 10, 2018 · If it was me, I would try disconnecting the tach from the car from the white wire and just use the Fitech connection to see if the problem goes away. There really is no good way to mount an electric pump below the fuel pick up point on the large tanks. It takes time to get to know a system, playing with it, and familiarizing yourself with all the options and features, here’s some of the things I learned in the last 2 years of having it. These systems come in a variety of builds, from simple … FiTech’s Ultimate LS System is not CARB (California Air Resources Board) approved for use on emission controlled vehicles. Apr 19, 2025 · Understanding these common issues can help you troubleshoot effectively. Mar 17, 2019 · The FiTech EFI will be running the cut in and out of the new electric fan (also using the factory shroud). Since my fans Jun 1, 2021 · My son and I are having trouble getting his Fitech Go EFI 600 to run well. It feels like you just ran out of gas. May 19, 2019 · Fuel Injection, Carburetion & Fuel System - FiTech info, adjustment and problem thread - Hey guys, got the idea from another forum as a way for us FTE guys to share tips and tricks on the Fitech go EFI systems. The stall Oct 30, 2024 · Dealing with a FiTech ECU “No Response” issue can feel overwhelming, but a step-by-step approach often resolves it. Can I use the yellow fan ground trigger wire to also ground an indicator light? Essentially I'd have 12v going to a light, then the ground wire from the light will tie in to the yellow fan wire.