no experience with this stuff. But...
Crank and cam sensor wiring ought be twisted wire with a ground sheath grounded only at the ECU, not the motor.
Coil Pack grounds have me figuring the Ground path needs to be the Alternator case, not the ecu. ECU grounded to Alt case too. If coil pack have " factory wiring to ECU" then a decent 4,700 uF Cap and 0.1 uF on the ECU 12V may help.
coil pack wiring ought to be twisted if possible.
Check the alternator brushes and slipring for smoothness.
Crank position sensor gap to not vary with vibration.
Beg the company for another ECU to rule-out a faulty box.
|