02 540i - CEL Flashing and car stutters
Every time I have to give a decent amount of gas to pass or merge the car stutter or misfires and the check engine light comes on blinking. It happened a few times and the CEL would stay on for a while and later go off.
Yesterday it happened again but this time the CEL stayed on and every time I hit the gas pedal the CEL starts flashing. I called my mechanic and he said "You must have dropped a coil". What does that mean? What is this related to? Does anyone have any idea how much this is going to cost? I just replaced the alternator not even a week ago and now this started happening just a few days later. Are they related at all? Is my mechanic ripping me off? HELP!! Thanks in advance!