[HWYSTR455]

Are the dizzy wires/connector close to the dizzy or dizzy cap?

Is the coil close to the dizzy cap?

Is the handheld wires close to dizzy, dizzy cap, coil, or plug wires?

Are any sensor wires close to the dizzy, dizzy cap, coil, or plug wires?

If you have a tach, disconnect it for testing. Remove all non-required connections. (Especially the CAN link)

You should be able to walk thru the setup screens with only the key on and not started.

If you are cycling the key a bunch, pull the fuel pump wire so you don't flood it with multi prime shots.

Just throwing ideas out there, but you've probably gone thru this w tech already. If it does start and run, you can look at the ECU 'trigger' light, and if it goes off or is erratic when the screen resets, that's a pretty good indication it's interference.

I'm not too familiar with the FAST unit, but have helped others. So bare with me if I sound redundant.

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