just did a complete tune up on my 2008,ignition coils and sparkplugs,after completing work and igniting car notice engine light still on and low performance while test drive and transmission gears not performing according to change speed...
after doing a complete tuneup.car performance poor, wont pick up speed,and engin on 2008 Ford Fusion
have codes scanned and post so we can adv. why did you tune in the 1st place?
what are the codes?
What is your question?