What colour are the wires coming out of the led light? I'm betting you have wired the earth to a 12v feed and the tail-light to earth.

Earths.

Only the doors falled orf gaylanders.

You should be aware that gaylanders are for hairdressers and homosexuals. All gaylander problems can be sorted with a gallon of petrol and a box of matches. @Hippo is chief gaylanderer and loves to groom new members. Stanley Sir! is a dirty old pervert. Don't go into Anything Goes if this post...

Is there a return spring on the pedal?

It will earth through the other positive wires, hence the flickering and other lights working a bit.

It's not a load compensating valve, so no. Is the blockage an undrilled hole or something else inside? If the old one works and the new direct replacement one doesn't, that suggests the new valve is faulty. I'd suggest that Sammy has no technical skills, which is why they work in the returns...

I know. I used to have a 1984 RR 3.5 carby. I expect @kermit_rr is on drugs or something.

Did you actually go down to kwik fart with it?

Oh. Why has it been posted in the RR section then?

Perhaps it may be because modern Range Rovers are too heavy for class 4 carlifts and need to be tested at a class 7 equipped MOT centre. I expect classic RR's are lumped into the same band.

Drive it longer and harder.

That could be blocked fuel filter or faulty low pressure fuel pump. Possibly faulty high pressure fuel pump.

It should read over 14v when running, not just on foot down. Have you checked voltage when driving? Mate's van would be over 14v, but when I drove it with obd diagnostic connected it would suddenly drop to 12v for a while then back up to over 14v. If it didn't go back up for a long while it...

He's not as dumb as those who don't get irony. :vb-poke-with-stick: :vb-vinnie:🤪

Are you getting 13.7v all the time? A mates van has intermittent charging fault and throws up P0087 when it's not charging and voltage drops below 12v. I keep telling him to buy a new alternator, but he hasn't yet. Basically not enough volts to run the high pressure fuel pump.

Battery voltage/charging system.

I would suggest selling your disco and buying a Nissan leaf and some tofu.

Fine. Tell him to not bother with the extra earths then, as they are obviously not needed.:vb-surrender:

I noticed no galvanic corrosion. What about the anodic corrosion?? Especially under the earth strap?