If I remember correctly Tincup had a similar issue with his shutting down. He was using a factory box but I believe the issue was the same. I also think a new ECM was the cure
Hmmmm, I seem to remember it being a bad Crank Position Sensor. In Cruizin's case I think his problem is a bad ECM as he is unable to get his laptop to recognize the ECM.
One of the things that I would ALWAYS look at when diagnosing a problem with EFI is the grounds. I'd make absolutely sure that I had EXCELLENT grounds for all sensors and the ECM. A bad or intermittent ground can cause a lot of havoc.
