after doing a complete performance poor, wont pick up speed,and engin on 2008 Ford Fusion

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...

by in Palm Desert, CA on November 19, 2012
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3 answers
ANSWER by , November 19, 2012
have codes scanned and post so we can adv. why did you tune in the 1st place?
ANSWER by , November 19, 2012
what are the codes?
ANSWER by , November 22, 2012
What is your question?