RotaryMan

I have this problem now with my 93 FD....When ever I come to a stop light and press the clutch pedal in and put her in gear with the clutch pedal pressed all the way to the floor the cars idel fluctuates between 400 rpm and 950 for about five seconds and the car dies. But the car will start right back up... I noticed that the car does this when the parking lights are on....but the car still does the same think when the parking lights are off ....but the car doesn't die ..rpms just fluctuate. ...I dunno could it be a bad ground...I hope someone has an idea....because I'm sure lost.....never encountered this problem before. Thanks ..Tony