HFS-3 Eaton Charged 1600

[Richard L]

After our phone conversation yesterday, I think the only solution is to rewire the supply to your custom ECU to power up at the pre-crank position.

As the wiring situation at present, you give little time for the third party ECU to power up during the cranking stage. It is a win/win situation to let teh system prime and ready at the pre-crank positon.

In turn the HFS-3 will work as designed.