Originally posted by mrspindlelegs:
My guess is that the hardest part of swapping in a 3-Liter Duratec is getting the PATS system to work properly.


Why would PATS care if the engine changed???


I'll even give you the benefit of the doubt (don't all die folks ) and say that "maybe" you were thinking the biggest problem would be the computer program required to run a 6 cylinder Duratec vs a 4 cylinder Zetec would have to be a different strategy. This in turn causing the PATS module to not recognize the new strategy and give a no start condition.

However... (you all knew it was coming )

When you get this new "custom tuned" strategy you can either have PATS reprogrammed or just turn it off altogether.

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.