changed from the 1227730.ecu to the 730v.3 and now everything works. Does anyone know the difference in the two formulas used. The 730.ecu uses speed density calc. I know this formula from the anht hac. But the 730v.3 uses engine liters and I haven't been able to find a hac with the formula. The decimal value for 5.7 liter is .18. Does anyone know how this is derived. The hex is the same(9F)

 

The value is inverted and rounded. Getting my mind to think like a computer 24/7 is going to take time. But i'm getting there.