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gq on lpg wont rev

Tech Talk for Nissan owners.

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gq on lpg wont rev

Post by shortyq »

hi all!
ok had this thing for some time,hasnt been used,until now
now its on lpg and it starts no worries but wont rev past like 1500
on petrol no probs there!
lpg gurus much info would be apreciated,thanks!

im guessing the mixerthingymajig!
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Re: gq on lpg wont rev

Post by jessie928 »

you could have blocked lpg filter
could need to adjust the mixer/converter
may have a faulty mixer.

could be alot of things, do you have a complex or simplex system?
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Re: gq on lpg wont rev

Post by HUSSLN »

There's a filter on your LPG line? How wouldn anything get into the lines.

Check that the tap on your tank isn't almost shut.
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Re: gq on lpg wont rev

Post by shortyq »

filter on the main feed?
no i hope its simplex and doesnt get to complex!lol
i clearly asked for gurus,cmon!
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Re: gq on lpg wont rev

Post by rusty bus »

What you are experiencing is usually caused by low gas pressure.

Usually Either it has a faulty gauge and you are almost out of gas or your gas filter is blocked. The gas filter is loacated underneath the gas lock off in your engine bay, its a seperate lock off solenoid usually not far from the converter, some are actually mounted on the converter. It looks like a bowl underneath the lock off solenoid with a bolt going through the bottom of it. You undo the bolt and check the filter and replace if necessary.

But make sure you turn the gas valve off at the tank and run the car on gas until it stops first. Otherwise you will have a heap of pressurised gas escape when you undo the filter and you may get burnt. It is usually left to a specialised gas fitter to play with as the high pressure side of the gas system can be dangerous if things arent done right.

But if i was you the first thing id do is go put gas in it and go from there.....
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Re: gq on lpg wont rev

Post by shortyq »

yeh cheers mate!
um its most def got half a tank,i just replaced the tank with one in date,no worries !
yeh i know the watsajiga your talkin about!
thing is it wasnt releasing the lpg so i gave it bit of a tap here and therelol
and then it started to work,but still isnt getting enough to the carb!

so im thinking something internal,like a sticky diaphram?,perhaps?
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Re: gq on lpg wont rev

Post by jessie928 »

HUSSLN wrote:There's a filter on your LPG line? How wouldn anything get into the lines.

Check that the tap on your tank isn't almost shut.
yes there probably is a filter on the main lockof from the tank.

you can get shit in your gas line exactly the same way you can get shit in your fuel tank.
what happens if your LPG filler point is full of mud?

Jes
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Re: gq on lpg wont rev

Post by jessie928 »

shortyq wrote:filter on the main feed?
no i hope its simplex and doesnt get to complex!lol
i clearly asked for gurus,cmon!
what do you want us to come and see your car and give you an on the spot diagnostics?
you have to check the things that have been posted first.

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Re: gq on lpg wont rev

Post by MyGQ »

what Gas system you running? Impco???
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Re: gq on lpg wont rev

Post by shortyq »

picked up another converter,its an omvl
pulled the old one and looks pretty farked!

thanks anyway you blokes
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