My car is having rough idling at stop signals but feels ok at cruising speed, though fuel economy has been bad. I got oil and spark plugs changed today but still no difference. I want to get the OBD check but all auto part stores seem to do that for post 1995 models.
When spark plug cables was pulled out from the wells, oil spilled out from one or two wells. Not sure whether it is a gasket leakage or piston ring problem. Is rough idling is related to this or something else?