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Revised Sniper 1 Downloads Page - Holley Performance Products Forums Holley have revised the EFI software support download page and now have two sections: Sniper 1 version 1 3 Build 50 files and Sniper 1 version 2 files As stated, the version 2 files (EFI software ECU firmware) are required for Sniper transmission control
please help with which software to download for msd6al-2-programable . . . Please be aware that this is a community forum Although Holley employees will take part in answering questions from time to time, your questions may or may not be answered by Holley personnel Thus, Holley can not guarantee an answer or timing on an answer
Creating Base Timing Table - Several Diffferent Sources - Holley . . . Holley has a video which is informative on how to manipulate table variables: How To Build A Custom Timing Table - Sniper EFI They also have a Jeff Smith guide that combines a lot of info into one place: How to Add Ignition Timing Control to Your Holley Sniper Fuel Injection System
Useful Sniper EFI Information - Holley Performance Products Forums Below are also some helpful Holley EFI videos to prevent some of the common installation errors Holley Tech sees often with the Sniper EFI The videos use HP Dominator ECUs in the examples, however, the content applies to the Sniper EFI as well
Home - Holley Performance Products Forums Holley EFI Collapse Holley EFI Tech Articles Topics: 38 Posts: 1,349 Last Post: Brushless PWM Fans 38 1,349 Brushless PWM Fans by andrewb70 06-20-2025, 09:11 PM Dominator EFI Dominator EFI Tuning Tech Topics: 2,846 Posts: 18,233 Last Post: Gen 4 LS Dominator No Spark Or Injector 2,846 18,233 Gen 4 LS Dominator No Spark Or Injector by Mitch Coon
WBO2 Sensor Troubleshooting Process - forums. holley. com Hello all Been dealing with wideband O2 sensor issues for a while now I'm running a Holley HP with one NTK sensor A while ago, the A F ratio started going WAY lean and corrupting the base fuel files I figured that the WBO2 sensor went bad, so I replaced it The A F gauge in the HP EFI software still reads super-lean The
Searching For ECU Troubleshooting Questions - Holley Performance . . . Then download all the proper contents from Holley's website for your unit's SD card contents and install on your freshly wiped SD card Next, load the most recent GCF you previously saved back onto the SD card Go back to the vehicle with the SD card and attempt to update the firmware for the 3 5" TSLCD and ECU, these are two separate processes
Sniper A C - Holley Performance Products Forums The Holley Terminator, HP Dominator EFI V5 EFI software ECU firmware finally added an A C activated option for the electric fans The Holley Terminator X X Max EFI V2 EFI software ECU firmware has the same Fan #1 #2 "Always On With A C" parameter (A C IAC Kick enabled)