Hey guys, is it possible to disable the fuel pump but still run on lpg. I have a fuel leak when the system is under pressure and will have a fair drive to the mechanic. Is it just a matter of pulling a fuel pump relay or something like that. I have an aftermarket tank on the GQ and cant get to the pump without pulling the tank out.
Just so Im sure on what to advise here, is it carby or injected?Originally Posted by NewDan
It's a 4.2 Efi patch
Hmmm that can make this a bit trickier being an EFI..
A lot LPG systems fitted to EFI engines require the fuel to be running as they start on fuel then switch themselves to LPG once they start, & as is the case 99% of the time even if yours has not got this setup, you will more then likely find the LPG system itself is powered of the factory fuel pump relay as they do the same thing as a stand alone Gas safety switch which makes it easy to utilize as a power source . So it may be the case that if you pull the fuel pump relay or fuse you may shut your Gas off as well...
Without seeing it first hand its a hard one to call but it maybe easier to fix the fuel leak itself then to power down the fuel system
Hopefully Yendor spots this & comes up with a really easy way around it but thats about all I can think of.
Last edited by patch697; 15th September 2012 at 07:57 PM.
NewDan (15th September 2012)
I would try removing the fuel pump fuse and see if it runs on LPG.
Some LPG system also start on petrol and then switch over to LPG, so you might need to get the vehicle running (if it's safe to do so) and then remove the fuse.
If the vehicle doesn't run on LPG with this fuse removed, another option is, when they removed the original fuel tank from the rear of the vehicle and installed the LPG tank there they would of more then likely extended the original fuel pump wiring and run it to the new fuel tank.
If you remove the fuel tank inspection cover in the rear of the vehicle you may be able to see where they have extended the harness and you can just disconnect it there.
Another option is to get someone like ENZED out to your place to repair the hose.
Gee Rod, You could have chimed in a bit earlier & saved me all that bloody typing........hahahahahah
Yendor (15th September 2012)
Thanks for all your help guys Ill try that in the morning when its light. It had the tank out last week to have a new fuel pump put in and been smelling petrol all week then today I saw the dripping. Problem with enzed is Im suspecting that the leak is coming from the connection at the top of the tank that I cant get access to without the tank removed. Unfortunatly the drive from my home no 1 in melbourne to my home no 2 in St Arnaud is about 300k and didn't fancy a petrol drip for that long. This better be a waranty job lol. Dan
Sorry boss, I was in the middle of cooking dinner and you had it covered anyway.
No worries Dan, it sounds like it should be covered under warranty.
Let us know how you get on.
Cheers Rodney
Why don't you just empty the petrol out and run it on LPG? Sorry if this idea is flawed, but it's a laymans idea...
Tappin
I got red dust in my veins.
Check out My Rig here: Broken
Pics of Forum trips I've Been on:
Pizza at AB's - 2012 Knockwood - 2013 Krissos Place Australia Day - 2015 Pizza at AB's - March 2015 Pizza at AB's - May 2015 Dargo - 2015 Newnes - 2016
WARNING: Towballs used for recoveries can, and do kill people and damage property.
Posting Permissions
Reply With Quote