Jun 12, 2024 · I just noticed that the V2 EFI software supports both Sniper 1 & 2, but I saw the note in the overview that say call Holley because V1.3 needs a special update. Is the update worth doing …

Jan 27, 2024 · This working good so far? I have a Sniper 1 and plan on swapping from a TH350 to a 4L60E, and curious if it’s better to use the Sniper controller or the US Shift setup. I like the idea of the …

Jul 15, 2012 · Forum Holley EFI HP EFI If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to …

Nov 5, 2023 · I wanted to post this to help others who have a Terminator EFI system (not Terminator X, which is different), and want to update the firmware from older versions prior to V5 since Holley does …

Feb 16, 2023 · When trying to take a datalog it seemed to freeze up after I started datalogging and won't stop datalogging. But when I went to view the file, I received this popup on my laptop when trying to …

Apr 27, 2017 · Can someone post a good running datalog file, so I can determine what's going on with my system. Once warm, it breaks up badly & stalls. The tach drops and everything on the handheld …

Sep 14, 2025 · Will go over again. Car was tuned professionally many years ago. No issues. Car went in for alignment this spring. They left key on, battery went dead. They put a jump box on it and tried to …

Jun 6, 2018 · How do you use the handheld SD card in conjunction with the Sniper EFI software on a laptop? Thanks.

Oct 12, 2022 · The 5V on my CAN IO failed also. I think it's not too forgiving although I don't know what actually caused the issue and I have no doubt it's something I did. Holley replaced it under warranty. …

Sep 19, 2008 · I have had fouled plugs and poor fuel mileage from a long time. The engine is a Chevy II 250 (6 inline). In the begining I thought it was the engine itself that needed to be re-built. In fact, this …