My S4 TII is at the tuner still. They fixed the pinout issue I had, then were getting some interference on the sensor signals (strangely, not the ignition, where I would expect it to be). He fixed that but there is a problem of it randomly cutting out. I built the board myself but sent it to Peter at PF Tuning to verify I had everything right. I have done PCB stuff before but just wanted to verify everything before I installed it.

It is an MS2V3.0 with a Zeal daughterboard.

My tuner sent me a video of it happening today. He is working to figure it out right now, I was just wondering if anyone had run into this before, maybe help save some diag time.

https://www.youtube.com/watch?v=25Hx...ature=youtu.be

 

Wiggle all the wiring while it's running and see if you can cause the cutout. Could be as easy as a lose ground or + connection. Or as annoying as a pin on the DB37 making poor contact.