engine light off and on ?
I have a 1985 corvette, base model. For a long time the check engine light will randomly come on as well as go off. The idle is rought and the rpm's at idle run up and down from 400 to 1100 and most time the engine will eventually die then instantly restart. I have had numerous people replace almost every possible part associated with this condition. From Chevy dealerships to shade tree no one can address the problem. There is a very small vacuum line at the passenger front side of engine under the plenum which currently has a screw stuck in it. I have no idea if it connected to a tee or to another location. I need help quickly. I am afraid to go anywhere other than close to home because of the problems. I need someone who can help. Please condider my plight and respond. Thanks in advance.