I'd say you have an injector and a loom issue there.

I tried wiggling the plug on my injector with it running and it made no difference.

Mine idles / runs fine it's just if you hold it at 2000rpm you can hear a slight miss. Also it judders very occasionally when letting off the brake and crawling, generally after a long run.

Everyone I've mentioned my +6 injector reading to has just said it needs a new injector as they only overfuel when they are worn.

The diesel specialist said +5 is the absolute max but I've read than anything over +2 isn't good.

The connector on mine seemed ok once i removed it and cleaned it but the loom was faulty further up the cable but I could well have an injector issue as well. The reading of 6 dropped down to around zero once i fiddled with the loom.

Holiday chicken where are you getting your wiring loom from and is it new?

The plot thickens on mine as the judder has now become more apparent.

Start the car up, no judder and injector 1 is reading 2. Rev it, judder and injector number 1 reads 7.

It then sits there idling and juddering with injector number 1 reading 7.

Another problem.... injector number 3 stays at 0... rev it do what you like and it just stays at 0.

I'm sure the diesel specialist said this was because it was compensating for number 1 overfueling but I'm not sure.

Thinking now I've got a wiring loom fault as well....

Any suggestions?

My injector 3 fuelling compensation was reading around 6 with the loom fault.
Have a look at the link below, if you watch it full screen you can just about make out the live values, this is still with the old loom that i 'adjusted'

Before adjusting loom and cleaning connectors, also had judder and lumpy idle



After cleaning connectors and adjusting wiring



I have this on order but having taken mine for a drive tonight i am showing a turbo fault and no injector faults

http://www.island-4x4.co.uk/injector-loom-...27542.html

Cheers. I'm going to do a resistance test when I get chance, if number 3 shows no continuity then I'm looking at a loom fault.

What do the values actually mean though ie,

Cylinder number 1. 7mm3

cylinder number3. 0mm3

I don't know what the numbers mean but i do know that when number 3 was reading 6 i also had injector faults logged and it was running lumpy and juddered as i tried to pull away.
i am guessing the fuel compensation is the amount of fuel the ECU feels it needs to put in to make the cylinder happy

As we are here, can you have a look at the photo below and tell me if you have one of these pipes please with what looks like a fuel filter on it that doesn't go anywhere?

That's some kind of breather. I know this as I got a new one in the service kit and it was listed as a breather.

Mine only runs lumpy when injector 1 reads 7 so that's definitely a fault. Concerned that injector 3 reads 0 all the time so I may pull the plug on it whilst it's running and see if it makes a difference.

I'm guessing it would be pretty obvious if I had 2 cylinders down though.

There's a chap up the road from me with a dead td6 RR.

Last time I saw it the engine was out. He's got a disco 3 and a 90 as well.

Recon it would be cheeky to knock on and ask to borrow his injector loom!

Quite cheeky, you could always ask him to borrow and injector while you are there ...

Thanks, I think it is a turbo or crankcase breather having a look around.

If you disconnect the injector 3 and nothing happens then you will know there is some kind of fault but could be the injector.
If you have a spare injector you could plug it in and put it in a bottle like they did on wheeler dealers

Are you getting any faults logged ?

Just getting the cylinder balance out of desired range or something like that which I'd expect.

Also the usual glow plug relay fault and an egr fault but I'm planning on bypassing that asap.

There are some used looms on ebay but you may end up with a faulty one as they are a common fail.

one of your faults is the same as mine above then ?

Yeh, don't want to go down that route for that reason.

It's annoying because around 5 years ago those looms were about £50 new from land rover.

I worked as an auto electrician for many years and still do to a degree so I'm going to back track a little and resistance test the loom before I go any further.

TEST LIGHT AUTOMOTIVE VOLTAGE TESTER LIGHT TEST LAMP 3-48 VOLT 211119
https://rover.ebay.com/rover/0/0/0?mpre=ht...1310022531

You can get noid lights I think they are called to test the signal but I bought the little tester above from eBay and used a couple of pins but mine flashed ok on injector 3 but it was obviously a week signal.
Good luck with your tests

Getting somewhere I think....

Decided to start with the basics so I fired it up, plugged the IID tool in.

Injector number 1 reading the usual 7mm3 so I pulled the wiring plug on injector number 1. No difference in the engine tone whatsover and IID tool still reading 7mm3.

Pulled the wiring plug off injector number 2, engine really lumpy now and IID tool reading 7mm3 for injector number 2. Interesting.....

Went through the other 4 injectors and exactly the same results, ridiculously lumpy idle and IID reading 7mm3.

Strangely injector number 3 is showing activity today.

So I'm back at injector number 1. Did a continuity test on the loom and all is reading ok. Unplug number 1, no difference on idle, plug it back in again and I can hear the injector clicking but that's it.

I'm guessing injector number 1 is delivering no fuel on idle. Also the IID tool has now stored faults for each injector I've unplugged.

At this point I'm as convinced as I'll ever be that the loom is fine and injector number 1 has failed so I'm going to order a replacement

Fingers crossed the old one comes out ok.