Hi Mike, If I recall correctly (must be 10 years plus ago now) Skiddel was running the same water pump with a 1/2" Electromotive sensor and wasn't having any issues
That is correct and I still am, but you should know that Mike as I sold you your throttle bodies and you can always ring me for advice
Mike how are you grounding the cable shielding (only ground one end otherwise you create a ground loop) and ground it as close to the ECU as possible
Crank sensors are notoriously sensitive due to the nature of the sensor and frequency of the signal and can require a little attention, EMI in general can be frustrating but nothing to get all uptight about so before you go and start unloading your annoyance on the water pump, ashtray and other random items borrow my scope and look at the crank signal (I can help)
BTW I'm only using this login because my normal (SKiddell) is messed up....admin can you sort