Holley Sniper Troubleshooting - In august i hired a tuner who did it over the phone from california. Click help tab (top toolbar) & about holley sniper efi. Ive been running a holley sniper for a about four years now. In the last year i have been struggling to fix a consistent hesitation i get under acceleration after it warms up. Pull your fuel pump relay. Turn on the ignition, start a datalog, and attempt to start the engine. Zip and post this datalog so we can see what's happening. My o2 sensor issues were determined to be the sensor tip being to deep into the exhaust pipe. This allowed moisture and cold cranking fuel to contaminate (soak) heating.
In august i hired a tuner who did it over the phone from california. Click help tab (top toolbar) & about holley sniper efi. Ive been running a holley sniper for a about four years now. In the last year i have been struggling to fix a consistent hesitation i get under acceleration after it warms up.