Originally Posted by
Arron5
Thanks for the reply,
I was thinking coil pack but everyone is saying it would do it all the time. Iv got a 4-1 miltek manifold, K&n, Cat-back and lowerd 35mm.
Then they are wrong ...
I have had a similar problem on my parents Fiesta Zetec-S and it turned out to be the coilpack ... it ran poorly and misfired bad in the low RPM range but fine after 2500 rpms.
New CP on, and cured it right away.