LS Ultimate no spark all of the sudden?
Tested kill switch in my race car. Now no spark. Fuses and relays test fine. Ideas?
Navigate the touch screen to the dashboard to watch the RPM. Watch this as you crank. If you see no RPM while cranking, there's no crank sensor input.
Quote from Paul Bell on March 1, 2020, 6:36 pmNavigate the touch screen to the dashboard to watch the RPM. Watch this as you crank. If you see no RPM while cranking, there's no crank sensor input.
Has RPM when cranking. Ran fine one minute, operated battery cut off switch and now will not run.
Maybe its not getting fuel. Spray some carb cleaner into the intake and see if it responds.
It has fuel pressure. How do I check for spark trigger?
Check all your settings including what program it's set to. When you tested the kills switch, it may have lost it or reset to a different program.
I have a kill switch on my car but I wait at least a minute after shutting off the engine to hit the battery kill. The ECM needs some small bit of time to save the last settings.
Fixed! Took awhile to get Tech help due to scheduling but once contacted emailed me directions. When the voltage spike happened it corrupted the handheld so it lost all information. Did a hard reset then uploaded last tune save in ECU and cranked right up and idled just like before. Thank you FiTech Warranty and Tech Departments! Now off to dyno to finish the 585+ HP tune.