BMW E34 mystery stalls on idle.

[D.E34]

Hi everyone!

My car is E34 525 M50 1993 manual transmission.
For last six months I'm fighting with a occasionally mystery stalls.
How it happens: While engine is cold it never happens, but when engine goes to warm it can stall on idle, it looks like ignition switched off.
Then engine is not possible to run with following symptoms: cranking, engine runs for a half of a second and stalls.
To run engine after crank i should press and release accelerator two times that's it engine is running.


Parts what are replaced:

1) IVC
2) MAF
3) O2 Sensor
4) Fuel Injectors are re manufactured
5) Fuel pressure regulator
6) TPS
7) Fuel pump
8) Spark plug sockets
9) all filters

Car runs really good, no matter engine is cold or hot, but idle stalls kills me.

Many thanks for any suggestion.

[whatt18yahoo]

by ivc do you mean idle air control valve???

i'd start there.

then adjust my set screw on throttle body

then say screw it and buy standalone engine management

[D.E34]

by ivc do you mean idle air control valve???

yes

then adjust my set screw on throttle body

Is somewhere technical cover to do this? I'm afraid just to adjust it.

then say screw it and buy standalone engine management

what you mean by this, it's a DME ?

[D.E34]

DME died few days ago that's mystery.

[whatt18yahoo]

standalone engine management allows you to delete the factoy ecu or dme or ecm whatever you wanna call it.

in short it's able to better control the engine and allows you to delete anything that is causing you hell.