- Tue Jul 27, 2021 6:48 am #52054
Hi, i have speeduino for m50nv 2.0rev without vr conditioner, im using m52 hall crank sensor. My problem is that ecu can't see any rpm. I find out that VR1+ and VR1- are connected with 1Kohm resistance and VR1- so i have +5v at both pins(VR1+ should be +5v output power supply for sensor and VR1- should be signal input high and low condition, am i right?). Have you guys any ideas what may be wrong?