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Oct 24, 2025 · 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 proceed. To start viewing …
Revised Sniper 1 Downloads Page - Holley Performance Products Forums
Jan 11, 2024 · 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 proceed. To start viewing …
Home - Holley Performance Products Forums
Oct 24, 2025 · Home DescriptionIf 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 proceed. To …
V2 EFI software upgrade on Gen 1.
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 …
Sniper EFI - Holley Performance Products Forums
Nov 30, 2025 · Sniper EFI Tuning & TechIf 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 …
Sudden erratic behavior, high AFR. - Holley Performance Products …
Jul 31, 2022 · Hi there. I have a 351 Cleveland in an Aussie XE Ford Falcon wagon running a sniper and a hyperspark. I installed the Holley parts a couple of years ago and while I haven't put on more than …
Sniper not connecting with laptop. - Holley Performance Products …
Apr 18, 2022 · Sniper EFI Tuning & TechOriginally Posted by Danny Cabral EFI Software is for the laptop/PC computer. EFI Firmware is for the ECU & touchscreens. The EFI (laptop/PC) software, …
Sniper With Returnless - Holley Performance Products Forums
Feb 2, 2021 · If you're running a Sniper unit that does not contain a built-in regulator and you're also running a returnless system and are having issues with erratic AFRs, please read on. Here's my …
Fuel Learn not working. - Holley Performance Products Forums
Jan 9, 2021 · I took the car for a drive today and noticed my AFR was on the rich side while cruising at light throttle. I setup the computer to record a datalog. Drove the car at operating temperature for …
Sniper 2 Firmware Update - Holley Performance Products Forums
Aug 24, 2024 · Hi. I have a Sniper 2 model 550-510 with a Sniper Transmission Controller. It appears to have had an older firmware version 102 since these were the file folders on the SD card. I followed …