Weird - I'd have thought that would be a lot smaller! Are there still other leaks? They probably should have seen that when the intake was off for the rocker covers...

I'm not convinced much of that is rust. It mostly looks like cavity wax, sealer, dirt and crap. A lot of the stuff in the seam looks like the sealer between the frame and door skin. Try a gentle clean up with a plastic brush to see what is really there, then spray it with creeping cavity wax...

Is that your vacuum leak? That's a big pipe! Does it go into the manifold somewhere after the throttle butterfly? Perhaps your car used to have EGR, and it's been removed, but the pipe wasn't sealed off? Just guessing. Not many vacuum tubes are that big. I assume your brake booster is still...

:vb-doh: And I bet that's all a lot steeper than it looks in pics. If I want to hire a camper, how drunk will I need to be, so I can pass the dumbass test to get one?

What brand was the outer packaging?

I regularly gets parts with the logo ground off. Parts are generally made by after marker manufacturers even when the cars are new, and they can't sell the parts they outside of the "dealer network" with someone elses trademarks on them. They are generally pricey aftermarket parts (not Ebay or...

Again, I'm not a Discovery 2 nutter... although I DO want a V8 manual one! "sensile family adventure wagon". The plenum should be easy enough to remove? The valley cover is a bit more major, ut should still be doable in a weekend (unless you have a Mrs, and kids - it could be a 6 week job...

Well done finding that. Resistance checks are all fine and dandy, but sometimes a LOAD test finds things like this... or burns out the last remaining strand :-D Isolate each end of the wire and load it up with a giant headlight bulb or something 😎

In fairness, most of those are Land Rover models that explode withOUT ingesting ****-tonnes of water. They're capable of it all by themselves 🤣

For the amount of effort invloved, you'd be MUCH better off fitting something good and desirable and mainstream. If you're going to go off on a tangent from the norm, you'd be better off putting the effort into something extreme, like a VW Toureg V10 TDI or Audi 4.2 TDI etc. An early BMW M57...

Could be the intake gasket. It seems to be pretty early in the intake path... and it seems to be quite a leak!

If nothing made it out the oil filler... it suggests a fairly massive intake leak - maybe the gasket was screwed up last time it was off? Perhaps an injector O ring? I would 100% start with lifting the plenum, while carefully watching for anything moving as I did it. I'd expect some pretty...

But you'll never empty it, especially the torque converter.

I've never touched a D2, just D1s, and stuff that works similar to a D2 (BMW and VW stuff etc). It does sound more like pulsing - a rapid hunt, rather than a misfire. Usually misfire make a slight pop or a slight pause in the exhaust. It could be related to where the richness is coming from...

Hmmm... those videos sound more like it's rapidly pulsing up and down? rather than misfiring??? Does that sound about right? It's a bit hard to hear over the belt/fan noise etc. Those long term trims are pretty up there - Pretty sure a Disco 2 only goes to +/- 25% for long and short. Are...

I put ceramic pads in the front... and they nearly STOPPED working at all! Even after a couple of thousand miles of bedding in. ABS wouldn't activate, even in the wet, if I tried! Changed to TRW "Cotec Premium" and they work REALLY well. I can activate the ABS in the dry! Maybe you have...

I can only "ASSume" the reader says ECU1 for bank one and ECU2 for bank 2. That does narrow it down a bit, if the fault is generally on bank 2. Those Long term trims suggest it's running similarly on both banks, when driving at least. Vacuum leaks affect idle sooo much more, because the engine...

That is true for EFI too. Both things.

Your error codes *suggest* that it's been trying to richen the mixture, but it hasn't worked... Exhaust leaks near O2s will cause erroneous readings - air gets drawn in and makes the system look lean, so it tries to richen it up... making things worse. You need to look at what the long term...

Which engine? There's a good handful of models that are **** and destroy themselves merrily.