@turbovan are you using the stock ignition switch for your 12v switched power? You know cranking 12v and running 12v are separate on the stock ignition switch and there is a mechanical gap (delay) when you move the key back from start to run.
This is correct. You will need to jump these two together so you have power when cranking.
"Crank Cherry Hall Effect Sensor - Requires pull up resistor. This tees into both the supply voltage and the output signal wire. Use a 2.4K resistor when using 12v teed between the VREF and signal wire to pull this up."
As I recall, diyauto only sends a 1k resistor with the Cherry hall sensor. So if you are powering the sensor from a 12v feed, you'll need to buy and T-in a 2.4k resistor.
This is also correct. The MS3X has an internal trim pot for the VR input, which I found useless. The pull up did the trick.
I'm working on wheel speed sensors using their hall effect sensor (traction control). I'm hoping that one is less of a pain than the VR sensor. It certainly isn't as easy to make a bracket for like the red threaded body sensor.
