My 87 325 just had flywheel replaced as pin that hit reference sensor snapped off, leading to no spark condition. Car ran well for 1 week. When car first starts it idles steadily but when it reaches operating temp, the idle varies from 900-1400rpms. I checked coolant temp sensor and it seemed to have right values per Bentley but when I remove wire from sensor car idles higher but steady. Is sensor bad? Is it idle control unit? Also, recently driving:first radio starts intermittently cutting in and out, then I lost power to radio, then dashboard lights dimmed, then car died. I waited 20 minutes while looking for shorted wires and the car came back and has been fine since (except for idel probem).Where would I look for this problem? Is it related to idle? Any help would be appreciated. Thanks