Thanks for all the info and assistance.

Feeling like I've got stuff to try now, as opposed to just setting it on fire.

I'll post an update shortly.

Cheers,
Ian

Hi Ian,

Have you made any progress with your problems? I am having similar issues myself with a 92 400E with ASR. Runs great when cold, but after driving around for a while and reaching 80C+, it does not want to start back up after being shut off. If I wait about 15-20 minutes, it will start back up and stumble along and eventually run a bit better, but still poor. Next morning, starts like a dream and then repeat.

In the past, I have replaced the engine harness, temp sensors, caps/rotors/plus/wires. To rectify my issue I have tried replacing the fuel pressure regulator, crank sensor, and now just sent out a spare throttle actuator I had to be rebuilt just in case.

Hi Rrecce,

No progress yet.

The list of parts you've replaced seems to be common, and from what I've read, sometimes still doesn't resolve the issue. Makes me feel cautious about starting to throw money at this problem.

I'm currently debating between selling the car as is, or attempting an aftermarket ECU like a megasquirt.