Originally Posted by kpneverdies
thanks for your reply. but, what if you got the tune specific for HFC and CEL still comes up?
It is most likely another issue then. Sometimes CEL's are related to a tune but most times they are not..... A lot of times when a CEL comes on after you get a tune it is just a coincidence and the first thing people want to blame it on is the software.
Scan the car and see what the code is then go from there. There are lots of things that can turn on a CEL on our cars!