My 745 Turbo was stalling intermittently. It had the symptoms where the tach would suddenly drop to 0 and the car stalls. The interesting part was that it only usually happened on a hard corner left or when the car was idling especially poor (cold).

One night last week, I thought I would try to isolate this (after 6 or 7 stalls in traffic and an almost no start). What I discovered was that the connector on the distributor for hall sensor was broken badly and when I wiggled the wire, the car would stall. My temporary fix was to zip tie the wire to another harness in a good position so it would not sway. This worked well and this past weekend I removed the distributor and replaced the connector and the 2 distributor o-rings. Overall it was very easy and it only took about 1 hour to do. My only tips would be, when it comes to taking the wires out of the old connector, it is easiest to partially break the connector further to make it easier to get the wires out. My connector was really brittle so a pair of pliers made light work of the job.

So why did the car stall originally on corners? When I looked at the broken connector, I could see that when I would corner left, the harness would sway and the metal tip of the right most wire in the connector was exposed and would ground against the distributor housing. Also, on a cold start my engine would idle so poorly that all the shaking would cause the wire to ground out.

Overall, this was far easier then I anticipated and I got to fix some oil leaks at the same time. To fix the idle I just cleaned the IAC with Throttle Body cleaner. Next weekend I will do the throttle body.