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LPG not engaging after running on petrol and switching back

Posted: 12 May 2006, 10:12
by stevewright76
My LPG seems to be going a little funny - if I run out of LPG and switch across to petrol all fine, but when I then refill with LPG, switch to middle position to clear petrol out then switch to LPG it doesn't 'take'.

I can hear the LPG switch engage, then another click, the orange light goes out (3 LED's saying full of LPG stay on) but no fuel comes through and I can't start. I've had this problem twice now - eventually it does work and you hear the system engage, but it's a bit random. I've then tried to keep it all running on LPG and it's OK.

Anyone else experienced this or have an idea on fix/repair?

Posted: 12 May 2006, 10:25
by Mocki
check the green ( the wire connected with the green) wire onto the coil, it tells the LPg brain the engine is running........

Posted: 16 May 2006, 20:20
by cactuswheel
Yes, strangely enough I've had this too - just for the last 3-4 days... spooky :shock: For some reason the gas will not come through at all, it did it as you say- intermittantly for a while- sometimes would work, sometimes not, but now its not working at all - either from the swap over during travelling or from start. I've checked the green wire on the coil and all seems fine, can anyone suggest anything else? :roll:

Posted: 17 May 2006, 21:41
by T'Onion
any of you two just had the air box off ?
check the wires going to the switches near the vaporiser , i have a habit of knocking one of the little pests off everytime i change my air filter , :oops:

Posted: 18 May 2006, 06:39
by Mocki
ok, i beleive Mr Shaw is away right now, so in his absence..........

there should be three LPG isolator relays, each one has two contacts, one on the vaporiser, one on the filter ( nr the vaporiser, and one at the tank, in the gas proof box, check the connections to them, they are all spade connections, take them off and put them back on if they dont appear to be at fault, one connection at a time.......
also check the multiplug at the back of the control box on the dash..........

feel free to ring if you are not sure, or ring Pete, i'm sure he wont mind, his number is on the Gasure web site iirc

Posted: 18 May 2006, 08:42
by j_robi
im experiencing a similar problem with switiching back to petrol...in terms of checking the connections is the best thing to pull a connection out, put it back in then go for a drive, switch it over and test if it works?
cheers

Posted: 18 May 2006, 09:45
by TYG
J robi you are letting the carb fill up

Posted: 18 May 2006, 10:04
by j_robi
i flick to the inbetween (to empty the carb- but didnt think this needed doing when switiching from gas to petrol anyway) until engine splutters, but then i wont engage with the petrol
this happened a good few weeks ago now, havent tried it since, just run on gas. but myrtles off the road at the moment, so will have to give it another go when she's sorted, its just not a nice feeling expecting it to engage and then splutter splutter...

Posted: 18 May 2006, 11:42
by TYG
Rob
works both ways , ie you have to empty the carb to run it on gas and fill it to run on petrol

Posted: 18 May 2006, 12:31
by j_robi
so to "fill it to run on petrol" when ive been running on gas for a month or so whats the best plan?
it has always worked previously
cheers

Posted: 18 May 2006, 12:58
by TYG
Who did the gas conversion ? did you get a hand book ?

Posted: 18 May 2006, 13:40
by j_robi
will have a look at it, cheers, just strange how its always worked before, will have a look for disconnected wires
cheers

Posted: 18 May 2006, 13:49
by Flibbertigibbet
TheTick wrote:Who did the gas conversion ? did you get a hand book ?

Did you get a handbook ? 8)

Posted: 18 May 2006, 14:03
by T'Onion
I got one when Mr Shaw did the conversion on the general ( and i still have it (somewhere )) :oops:

Posted: 18 May 2006, 14:36
by j_robi
uww think so, will try to dig it out