Originally Posted by Go Fast For Life
I have a stock 97 PCM I may want to swap for the Performance PCM. But what are the differences?
A 97 owner said this about his Mopar PCm , "The FA on the Stock PCM ranged from 14 at 4000 to 13.2 at 6000 with stock PCM.
FA with the MOPAR ranged from 13 at 4000 to 11.9 at 6000.
In my opinion the FA was a little lean with the stock PCM and a little rich with the MOPAR PCM." The Mopar PCM eliminates the check engine light when cats are deleted. Spray...