Hi the LPG on my car has developed a problem whereby it won't switch over to gas anymore and just beeps until I select petrol which it runs on fine. On a cold start the LPG gauge shows full tank and the LPG light flashing but once the engine warms and the car should switch to gas it just beeps and won't go on gas.

I have a 2 year old Romano premium system which had a new gas filter 2 days before this fault. I've not had a single problem with the LPG in the 12 months prior since I purchased the car.

Any ideas on what could be causing this fault? 2004 Range Rover Vogue 4.4 v8 LPG, Java Black, 22' Hawke Alloys, Black Beast

The solenoid valve at the vaporiser will likely be gummed up and stuck - it get's sticky with the LPG residue and needs cleaned.

Happened to mine before - fairly easy fix. Stolen / Gone: 2006MY Supercharged LPG Autobiography - Zambezi Silver with Sand/Jet/Jet Oxford Leather.....

They have a computer control for them, if you can't find the fault then get it code read by an LPG installer, should tell you whats wrong... also, check you didn't disturb anything when changing the filter... Pete

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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
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I was thinking to try disconnecting the battery for 30 mins or so to reset the ecu - is this worth a try or will it wipe all the settings off the LPG ecu and cause more potential problems? 2004 Range Rover Vogue 4.4 v8 LPG, Java Black, 22' Hawke Alloys, Black Beast

should be a fuse for the LPG system just pull that for a reset
this will also wipe the fault code on the LPG ecu (if you intend to get it read)

You can't wipe the LPG ECU by disconnecting the battery...

You can buy a lead and the software for your system, usually some on ebay or try http://www.tinleytech.co.uk/ Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Thanks for the advice, I tried the battery disconnection anyway buy the fault is still there, I will take the car to a LPG specialist on Saturday to hopefully resolve the issue, will update you guys once done. 2004 Range Rover Vogue 4.4 v8 LPG, Java Black, 22' Hawke Alloys, Black Beast

Have you checked your coolant level ? If t's low then the vaporiser will not get warm enough to unfreeze the gas .

Knightrider wrote:

Thanks for the advice, I tried the battery disconnection anyway buy the fault is still there, I will take the car to a LPG specialist on Saturday to hopefully resolve the issue, will update you guys once done.

CG-SC wrote:

The solenoid valve at the vaporiser will likely be gummed up and stuck - it get's sticky with the LPG residue and needs cleaned.

Happened to mine before - fairly easy fix.

Glad you got it fixed, I was fairly sure from your symptoms that it would be a stuck solenoid - it is usuallt the one at the vaporiser that gives issues - if it happens again I'd look there......fingers crossed all will be gine though  Stolen / Gone: 2006MY Supercharged LPG Autobiography - Zambezi Silver with Sand/Jet/Jet Oxford Leather.....