Upgrading from MS2 to MS3Pro
 

Why is this such a difficult task? I have loaded the base map, redone the maps to look like my previous tune and adjust for the coils etc. I cannot get this thing started! I am very close to tossing the MS3 and just running the MS2. At first the car wasn't starting, but would let out a loud pop. Now I am getting nothing. Lots of headache just for some flex fuel capability...

Timing rising edge versus falling edge?

Thanks! This turned out to be the fix. I had set to to falling edge because that's what the MS2 had been using, but apparently hardware changes necessitate a different trigger capture on MS3. Switched to rising edge, it shot out a very loud fireball, then started right up.

The ignition timing then had to be adjusted, it was only off by a degree or two however.

Excellent! Been through it when switching from a MS3 to a different MS3 with different hardware inside.