I have a third party tracker that I will get fitted to my 2014 L405, and it comes with a relay suggesting that you connect it to the fuel pump. However LR technical suggest that this is a bad idea (no idea why I didn't talk to them) - So my question is has anyone done this, how did they do it, or what would you suggest for remote disabling?

Thanks.

Well basically it could end up starving the fuel delivery system down the line. So the high pressure fuel pumps for the injector rails may run dry /empty /starved and become unlubricated from no fuel... Potentially leading to damage of same.

I suppose it's a balance of the risk of that versus losing the whole car to theft. V8 or else ...

And what will your thief do by the side of the road with a dead car (and a box of matches)  .
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I'd have it triggering a dual pole relay fitted to the start stop button, one pole activates stop and the other to disconnect the start side to prevent a restart. Current
2017 Range Rover Sport SVR
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Its all well and good until the vehicle gets shut off on a busy junction, in the path of a 38 tonner...

It's powered by a tracker so you'd already be logged onto the tracking software and be able to see where the car is real time and decide where to stop it.

It could be intentional, they wouldn't be nicking cars again  Current
2017 Range Rover Sport SVR
2001 Porsche 911 Turbo
_____________________________________
Previous
2013 Range Rover Autobiography SDV8
2007 Range Rover Vogue SE TDV8
2002 Range Rover HSE TD6
+ Many other non LR products