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FT450/FT550 Sportsman Data logging A Harness
9. Troubleshooting
Issue Solution
FT450 Unit doesn’t turn on
1. Check battery voltage
2. Check power and ground cables
3. Check Switched 12V cable
4. Check ECU harness cables
FT450 doesn’t read
cranking
1. Check crank trigger and Cam sync connections
2. Check sensor gap
3. Check diagnostic panel for RPM signal
FT450 reads RPM but
engine doesn’t start
1. Check if there is spark and injector pulse
2. Check fuel pressure
3. Check crank trigger alignment and TPS calibration
4. Check if outputs are activated and properly congured
5. Check the O2 sensor reading
Engine runs but doesn’t idle
1. Check TPS calibration
2. Check timing with a timing light
3. Check TPS idle table and adjustment
4. Check O2 sensor reading
Engine spits & sputters
1. Check O2 sensor reading
2. Check ignition calibration and ring order
ECU won’t communicate
to PC
1. Ensure your software version is compatible with your FT450
rmware version
2. Check if read and write buttons get colored when FT450
is connected
10. FuelTech Latest Manuals and Software
You can access all updated manuals and software at the FuelTech website:
www.fueltech.net/manuals
www.fueltech.net/software
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