Contour Enthusiasts Group Archives Forums Modifications 3.0L Duratec ?Help tracking down the stuttering problem....Long...

Ok, I read through all the posts, and the problem does seem to be similar. However, I didn't have it before The week where I went to the dyno and put on the new exhaust.
I have a 1999 SVT which has always had impecable engine performance in the past.

In my case, since my engine ran fine before, something has happened to cause this issue and it is not likely to be a prom issue.
Its either going lean, going rich, or timing problems.

I tried several things to richen the fuel up because I though it was due to lean misfiring.
Higher Fuel Pressure -- No change
Additional fuel added with suplemental injectors -- no change
Now larger 24# injectors -- NO change, and running rich.

Seems to me like it is becoming a timing issue.

I wonder what will happen if I remove the knock sensor plug. If it is getting false knock readings, then it might not pull the timing off.

I think I'll go and try that now.

warmonger