Getting the VL tacho to work. Uncategorized, WiringBy MikeAugust 7, 2014Leave a commentAll that is required is a 9k or 10k resistor soldered between the pins in the photos. I used a 9k as the 10k didn’t work as well. Then just wire the vl tacho input to the r32 ecu tach output and all should be working.