• Sign Up! To view all forums and unlock additional cool features

    Welcome to the #1 Ford Focus Forum and Ford Focus community dedicated to Ford Focus owners and enthusiasts. Register for an account, it's free and it's easy, so don't hesitate to join the Ford Focus Forum today!


Pulling Spark plug wires

rjdmnewt1

New Member
Messages
1
Likes
0
City
Chicago
State
IL
Country
United States
What I Drive
2006 Ford Focus
#1
I have had a high negative long term fuel trim for some time now. Car has a rough idle but still runs fine and has some power from a stop. Drive 60 miles a day, 6 days a week. Pulled a wire off a cylinder and didn’t see a change on my ob2 reader. I then pulled the next three off individually and there was no change noticed. When I pulled the injectors off individually I did notice a huge increase in stft before I reconnected. Changed valve cover gasket very recently. Any ideas of why my car runs fine but I have these issues?
 
Thread starter Similar threads Forum Replies Date
T Third Generation Focus 3
C Third Generation Focus 0

Similar threads



Top