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 …

Jan 17, 2022 · Been 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 then dies. If I hold the …

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 …

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 …

Jun 28, 2025 · I wasn't sure what to try, so with it idling rough in my driveway, I decided to turn off Closed Loop Compensation. It cleared up instantly. I thought I had it fixed. Then after driving a …

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 24, 2012 · I recently spent several days reading (books) about EFI idle tuning and improving my engine's idle quality. I finally achieved, what I consider, an excellent idling engine...but it …

Apr 6, 2020 · When it's done, it's idling at 900 RPM with that 0% reading. What are some things I could modify in the tune to allow the IAC to get involved? I have done a warm "butterfly" …

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 …

Apr 21, 2020 · Setup: Quick Fuel Q-750 - nowhere near stock. I tuned this carb a few years ago and just started having a second problem. I’ve always had the first, but the second is new. …