This is the first V3 board that I've used and I'm getting a pretty regular tach spike that's makes tuning impossible. It spikes every few seconds. Anyone else have this problem? I'm using two VB921 IC Drivers to fire the coil packs. The crank signal is still shared with the stock ECU and I've considered powering the sensor with 12V+ and wiring the signal directly into the MS and disconnect the stock ECU.

On a side note, I also had a pretty regular TPS spike and was bliping the Accel Enrichment. Converting to MAPdot fixed this problem.