Strange stalling m103 engine

[bri957cc]

Morning

I'm having a couple of problems with my 190e 2.6, basically it is occasionally stalling.

It does this at very specific times:

Starting from cold - fine
Starting warm - fine, although occasionally will backfire through intake when starting it up when warm.

After a longish drive, park up and return to the car half an hour later, starts fine then stalls when stopping and revs drop to idle. This continues for about 3-4 minutes, stalling every time it comes to a rest and the revs drop to idle speed.

Then as if by magic, all is fine and doesn't stall for the rest of the journey.

Rotor arm/dizzy replaced about 5k ago
Leads are newish
Fuel distributor replaced 3k ago
Spark plugs new
IACV has been cleaned and tested - all ok
OVP replaced with secondhand unit (that did improve the dodgy idle issues it had previously)

I'm thinking it could be the crank position sensor?

Any advice?

Cheers Brian

 

[television]

Hello brian,,missed your post, the CPS normally fails at any speed, when hot, and not just idle

Do have a read here as it all applies to you

http://forums.mercedesclub.org.uk/showthread.php?t=44372

 

[bri957cc]

Thanks Malcolm

After it stalled again last night I parked up and had a proper dig around the engine bay with a torch.

While opening the throttle I heard a faint intake sound from the area near the headlight and discovered a vacum pipe disconnected. Turns out to be for the fuel vapour evaporator in the passenger wing.

I plugged it with gaffer tape initially and this has solved the problem. Will reconnect the pipe this weekend in daylight.

Thanks for the advice though, is appreciated.
Brian