My dads 89 740Ti has been at the shop for about 2 months now.

It started out, when he turned a sharp right corner the car would "miss, stumble, die, then fire back up"

So it did that for a while

Then it just randomly started to die and wouldn't restart.

So thats when the car went to the shop.

The replaced the fuel pump relay and the car died in 2 days.

Then when ti wouldn't start, they found the fuel injectors were not firing

So new fuel injection relay, still wouldn't run

They threw in different radio supression relay, cleaned all the grounds, switched in a rebuilt distributor.

Then they tried the fuel computer, and crazy it started up and ran (VERY RICH) with a NATURALLY ASPIRTATED fuel computer. Put in the stock turbo one, wouldnt start. So he got another fuel computer, and it still wouldn't fire, put the NA back in and it runs.

Today he tried a new ignition computer, ballast resistors and power stage, but the car still does not run.

They have also cleaned all the grounds.

No success.

What else should he look at? Broken wires? where? Shop and him are stumped.

Any help would be appreciated

Jordan