Thanks. Not sure. My guess is if that is a quick thing I would guess so, but I need to ask. I've been going to him for 5 years, but yeah $105 bucks is steep for changing the plugs. Maybe he added the labor for tweeking the fuel mixture or something.

Normally he has been pretty good, but this time, it has been difficult.

Another suggestion was putting fuel injection cleaner in my gas tank.