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Author Topic: LPG switching off  (Read 5775 times)

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b4ndit

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LPG switching off
« on: 22 November 2015, 12:48:54 »
Hi, my lpg switches itself off at 60 mph and above but is fine at 5o and below has anyone any ideas
many thanks :y
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Lazydocker

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Re: LPG switching off
« Reply #1 on: 22 November 2015, 13:32:00 »
Need more info than that... System type. Make and model of system. Any other symptoms? Just started or been like it all along?

I would hazard a guess that it can't supply enough gas, but there are many potential reasons for that which full info would help diagnose ;)
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b4ndit

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Re: LPG switching off
« Reply #2 on: 22 November 2015, 15:01:18 »
It's a stag system on a 2.6 no other symptons and has been like it for a while now only happens when I get on the dual carriageway or motorway. I have checked the coolant flow and no problems all connections are new and tight, no problems in the wiring that I can see just need to try and find out why it switches back to petrol at 60 and above :y
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Lazydocker

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Re: LPG switching off
« Reply #3 on: 22 November 2015, 15:11:54 »
You need to get it plugged in to see what's going on. Do we know who fitted it? Has it always done it?
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tunnie

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Re: LPG switching off
« Reply #4 on: 22 November 2015, 15:23:45 »
Very odd. So if you red line it at say 50 in second gear, it's fine?
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b4ndit

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Re: LPG switching off
« Reply #5 on: 22 November 2015, 15:52:54 »
It was fitted by me following the guide. if I red line it it will be ok until it hits 60mph. and it has always done it it has been plugged in and came up with coolant flow which I checked on Friday and made sure it was all working properly, its just starting to get on my nerves now and if I can't fix it or get it fixed I think I will have to pull the whole kit off as it is a waste of time having it on if it ddoes not work correctly. thanks
Terry
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STEMO

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Re: LPG switching off
« Reply #6 on: 22 November 2015, 15:57:50 »
When you drop back below 60 does it switch back to petrol on it's own?
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b4ndit

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Re: LPG switching off
« Reply #7 on: 22 November 2015, 16:00:40 »
Not until it goes below 30 or if I come to a stop and it is ticking over it will change back to gas :y
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STEMO

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Re: LPG switching off
« Reply #8 on: 22 November 2015, 16:04:10 »
Did it start happening when the weather got colder?
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Migv6 le Frog Fan

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Re: LPG switching off
« Reply #9 on: 22 November 2015, 16:10:41 »
I wouldn't be surprised if the coolant has been plumbed in the easy way. I.E. the wrong way.
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b4ndit

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Re: LPG switching off
« Reply #10 on: 22 November 2015, 16:12:59 »
not been doing it when weather got colder started well before that. what's the easy way of plumbing it in thanks
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Lazydocker

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Re: LPG switching off
« Reply #11 on: 22 November 2015, 17:54:14 »
Ok. What vaporiser is it? And have you plumbed the coolant feed from before the HBV?
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b4ndit

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Re: LPG switching off
« Reply #12 on: 22 November 2015, 17:58:15 »
Vapouriser is a kme and the coolant feed is plumbed from the back of the block to a t piece and into the vapouriser then back from the vap to the return pipe on the hbv if that makes any sense
thanks :y
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Lazydocker

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Re: LPG switching off
« Reply #13 on: 22 November 2015, 19:26:22 »
Quote from: b4ndit on 22 November 2015, 17:58:15
Vapouriser is a kme and the coolant feed is plumbed from the back of the block to a t piece and into the vapouriser then back from the vap to the return pipe on the hbv if that makes any sense
thanks :y

Do you know which KME? Twin vapour outlets?
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b4ndit

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Re: LPG switching off
« Reply #14 on: 22 November 2015, 19:27:48 »
will have a look tomorrow but think it only has one outlet
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