Fuel Isolator

[Stealaway]

Is there a valve you can install in the fuel line to enable you to switch of the fuel to the engine?
Any thief shouldn't ever get more than a mile away.

 

[hilldweller]

Don't some alarms just break the pump feed to achieve this ? Bike alarms do.

I'm not totally sure and it may trigger a fault code in the new fangled motors.

 

[Lenny HB]

Is there a valve you can install in the fuel line to enable you to switch of the fuel to the engine?
Any thief shouldn't ever get more than a mile away.

Easier to fit a switch inline with the fuel pump relay.

 

[Stealaway]

fuel pump relay.

Wheres that then?
2012 Fiat Ducato

 

[Stealaway]

Ive just found this -- could be handy if I have one.

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[hilldweller]

Easier to fit a switch inline with the fuel pump relay.

Bu

Easier to fit a switch inline with the fuel pump relay.

But make sure there is no chance of catching it when on the move, consequences would be pretty exciting.

 

[Peter JohnsCross MH]

Easier to fit a switch inline with the fuel pump relay.

Excellent idea, something I have moted in the past

Peter

 

[andy63]

Is there a valve you can install in the fuel line to enable you to switch of the fuel to the engine?
Any thief shouldn't ever get more than a mile away.

I put one in an old m3 transit (manually operated ) as one of the security measures...
On a couple of occasions i forgot about it... first signs were a miss or two of the engine.. i was lucky every time it happened that i could pull in and get it turned back on before it ran out completely..
If that hadnt been the case it may well have been a pain as they didnt always self bleed...and im not sure how long one of the common rail high pressure pumps would cope with no fuel to lubricate it...
Andy.

 

[Lenny HB]

Wheres that then?
2012 Fiat Ducato

I think its in the relay/fuse box under the bonnet.

 

[Lenny HB]

Ive just found this -- could be handy if I have one.

Most vehicles have had them for the 25 odd years, they cut the fuel supply in the event of a crash.

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[bobandjanie]

Remember the days when we worried about the b******* stealing your catalytic convertor.
How things have changed. Bob.

 

[Lenny HB]

Remember the days when we worried about the b******* stealing your catalytic convertor.
How things have changed. Bob.

The CAT on my first van got nicked, guess what - there were Pi-keys in the area at the time.

 

[Ranger]

and im not sure how long one of the common rail high pressure pumps would cope with no fuel to lubricate it...

That's a good point.

 

[tonyidle]

Most vehicles have had them for the 25 odd years, they cut the fuel supply in the event of a crash.

So simply fit a switch in series with it.

 

[tonyidle]

That's a good point.

Wouldn't matter. The engine won't fire with no pressure in the fuel rail. The ECU might not even allow the starter motor to operate.

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[pappajohn]

Pre JTD Fiat's had an impact sensor switch under the bonnet to cut the fuel pump supply in a crash. Simply pull the switch from its socket.

My tracker has a function to remotely disable one circuit..... Usually the fuel pump but could be the fuel cut-off solenoid on mechanical pumps.

 

[dpsuk999]

If you can find the top of your fuel tank (on my a-class fiat ducato it’s under the floor between the drivers and passengers seats) just simply unplug the connector and using a multimeter determine the switched live (when ignition is switched on) and simply fit a switch (hidden of course) following the diagram below:

 

[jezport]

Is there a valve you can install in the fuel line to enable you to switch of the fuel to the engine?
Any thief shouldn't ever get more than a mile away.

If you fit a valve in the fuel line you will have to prime the fuel system after an attempted start if you forget its turned. Not a good idea.

 

[tonyidle]

If you fit a valve in the fuel line you will have to prime the fuel system after an attempted start if you forget its turned. Not a good idea.

Not with any modern engine. The injector fuel rail has fuel under pressure circulating - just a burst to prime it once the ignition switch is turned on then continuously once the starter motor turns and when the engine is running. A valve is still pointless though - switching the fuel pump off has the same effect.

 

[Nosmo King]

The benefit of a valve though is that it's unusual... most tealeaves will be looking for a hidden switch I imagine.

A valve would be hard to hide yet still remain accessible.

I prefer the Mad Max solution.... you might lose the camper but it's one less maggot on the streets...

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