Hi All.

Rite this is my first post so go easy!!
Ive got a 1990 w124 300te that has 199k on the clock
LPG converted with a Romano RiS Multi-Point system fitted

Today the old girl just don't wanna start
The past few days the general starting has been off and today shes totally gone.
Ive checked the usual suspects....Spark (there)...Fuel (going into and out of the metering head)...Fuel pump relay (changed as old one had broken components and shot tracks)...OVP relay (also changed because of the abs and poor idling problem)...ECU (tried another)...Pressure actuator (tried another)..Ignition control module (tried another) and still no joy
Luckily the guy at the breakers was such a nice chap he didn't charge me for trying others for ones off his shelf (or cars!!!)
I can say that fuel is present and pressurized in the metering head because when i swapped the pressure actuator fuel squirted out from there but no fuel is going to the injectors.
And i know that the ignition is fine because the plugs, leads, dizzy and cap have been changed within the last year and if i cheat with easy start and give it full throttle the car fires off the sprayed in fuel (easy start) and the gas (LPG) system kicks in and the car will run fine but as soon as the gas system is switched back over to petrol the car dies instantly
So it has to be a fueling problem rite?
I was wondering if maybe the diaphragm in the fuel distributor was shot and this is the problem because of the fuel being present in the metering head below and is not getting to the injectors?

As you can see I'm at a bit of a cross roads and need a little help on the subject as starting every time by removing the air filter to spray in easy start just doesn't do the old girl justice

Thanks in advance
Alex.


New INFO no pulse at cold start valve...removed fuel line to cold valve turned on ign and fuel shot over the other side of the path!!
Hope this helps?

Sorted it now!

Thanks for all the help guys!

Alex.

LPG is not much used in the U.S. - probably lucky to find a Benz using it.

LPG conversions are much more common in Australia. Next time try your luck with some of the Australian MB forums.