I have a 1995 Mercury Cougar with 83,000. miles on it and they can't get the check engine light to stay out?
The check engine light won't stay out. The ERG solenoid has been change, they
put in a new EGR hose set, nothing is plugged up, they clean out everything and
it still comes on. They said it could be in the wiring because I did have to replace all
my hoses from a rat eating it. Where is the wiring for the check engine light?