VS Dual Fuel - Stalling on LPG only

[strgas]

common problem to check is the purge hose under the throttle body to the purge valve as this often falls off from backfire and will introduce a vacuum leak which wont affect petrol running to badly but cause LPG running rough surging and stalling , if this hose has come off I would recommend you replace it with a single piece of vacuum hose and if backfiring to change the spark plugs to a NGK BP6EFS with a gap of 1.0 to 1.1 mm

 

[RUN415]

I checked that purge hose as suggested. (TB ---> Black box behind the drivers side head - 2 hoses and electrical plug)
It's connected and seems to be in pretty good condition.
I didn't even know that fing was there...always good to learn about a new doodad...lolz.
Thanks mate.

 

[statey1975]

Make sure there's adequate coolant flowing through the converter too. If there's no coolant to keep the converter warm, it will freeze up as the LPG is so cold.

 

[Tigion]

How did this work out were are having similar problems to

 

[hotrod]

hi, its all been said , the only option is to take it to someone that knows lpg , not all mechanics can do it go to lpg specialist that's my advise .
it can be anything from a tune to your computer modulator . my gas regulator was my problem the seal went and it flooded my engine.
like was said you be just wasting money replacing parts that are not needed. that's my advise or if the fuel working correctly run it on that till you can get it looked out.

 

[Tigion]

problem with ours is everything had been checked we have only had the car for a week first time for me with lpg just trying to get as much info as i can to make sure i don't get ripped off taking it to a gas mech , already learnt heaps just off this forum but there is allot of posts on here that have ended without a outcome

 

[hotrod]

yip and every car situation is different.
does it run ok on unleaded?

 

[Tigion]

yeap all good on petrol on gas just stalls when ya slow down most of the time it will start up on gas

 

[EYY]

Probably just needs to be tuned.

 

[Tigion]

that's what im thinking evy like i said the gas tank had just been checked twice im guessing thats caused the problem