We recently rescued a very sad '87 745 Turbo. The car has been sitting for quite a while and ran when parked. I know this because I have known the car for many years. It was parked due to 4 exhaust studs breaking and a large exhaust leak. I can not get any spark, fuel, etc.. out of it. I attempted to test the hall sensor wiring and my readings where off so I attempted a repair and it is the same. Can someone tell me a good way to test the ignition computer or some other diagnostic help?


This car had an a/m alarm, I ripped all of this out and repaired the spliced wires all should be back to factory. 2 questions though.

1. there is a rectangle box on the cam cover with a wiring running to the the flex plate area on the passenger side with a sensor. I assume this is not factory as it is in a place other than the top of the engine and I have never seen this on any other car.

2. There was a grey rectangle box on the passenger upper clip on the coil. Again from all my research this does not apear factory either. Anyhelp would be appreciated as I am in the process of fixing the studs now and would like to get it back on the road soon.