Jun 26, 2025 · My car was idling and warming up and just died. The only odd thing I see in the datalog is a slight increase in voltage just before the car died. I wouldn't think that a 0.1V …

Apr 22, 2025 · New to Terminator X EFI and could use some advice to get a decent running tune to drive around with until I can get a full tune. Gen 4 5.3L with BTR Truck Norris cam, VS …

Jul 28, 2025 · Attached is a datalog file showing when the IAC Position is kicked to wide open. This is directly after the vehicle being shutoff and was idling fine with the IAC Position at …

Jul 23, 2025 · Good Evening Everyone. I’ve recently installed a Sniper 2 on my Ford 427 and seem to be having an issue with idle control and the IAC. I've attempted to follow steps read in …

Terminator X EFI Tuning & TechBeen trying to do my research and read up for issues, but can't seem to pinpoint the problem. My engine tries to starts, ramps idle for a half a second …

Dec 28, 2024 · I've got a strange issue with my fuel pressure. When I turn on the ignition the pressure is about 43 psi, but once the engine starts it's 60 psi. The fuel pump is in the tank, …

Jul 5, 2023 · So I've had a couple threads regarding my IAC, which I've replaced already, and I'm still having some problems with idling. I've done the IAC tune as directed on here and Holley …

May 30, 2024 · My IAC seems to be hunting from 2%-12% roughly when idling at >= 180°F engine temperature. I've gone through the factory IAC setup two times and also verified the …

Oct 11, 2020 · If the gap is great, say your idling at 1% and your Hold Position is 30% and you slow tip-in on the throttle, when you reach 2% on the TPS, the IAC motor will jump to your …

May 18, 2021 · Bad news, still idling high. I’m going reset the idle mixture screws to 1-1/4 turns out and adjust all over again using a vacuum gauge. Also wondering if my timing is too …