heres some readings. If they make sense. All cylinders while engine running both on rough and fuel trim. 0 rpm Engine speed 780 rpm Air flow 466.3mg/... Fuel pressure high. 28659KPA. Max 114636. Min. 27636 Sensor supply voltage 1. 5.0 volt Sensor supply voltage 2...

That's what he said , after I change harness he's going to call and run it through again , although when doing harness I am going to do injector bleed off. I also add that I did find a wire broke and rejoined at air temp sensor (joined with standard screw conectors much too big for small wire )...

Yes thanks but sensors themselves seem to be ok and considering 3 were new it appears to be a break but he can't locate it without cutting into various points which would be more costly as I have a good harness which a guy give me for petrol money so going to put in on when I get a chance then...

Landrover guy was out put code reader on ! 5 faulty sensors so looks like broken circuit in the engine harness .

Mine doesn't stall , but misfires and smokes at 2500 rpm and it is putting no codes up and no mil lit . When you leave it in a garage with no fault code the hourly rate for searching for a fault can soon get Quite expensive, that's why I am trying cheap fixes first . Bit of a gamble , but I...

Sure , be the end of week before I get anything else done now as need a trailer axle repaired to get it out of garage And get the landy back in .

Will do , going to pull engine covers off to see if it's easy to fit full engine harness as I have a joint wire at the plug of my map sensor , I am hoping it's a case of plugging main sockets in then just following round to sensors. As long as alls reachable without stripping major parts off...

I might need bit of luck lol. Can buy a injector harness off another td4 that's good so for sake of £10 quid might try that as its only simple plug in , I can get full harness that runs glow plugs sensors etc it'not sure if it's all just plug in or I would go with that if I thought it was not...

Strange thing I think I have more blow out of oil filler cap than before I changed to the plastic crankcase Oil seperater. Now I am thinking I cleaned the rubber valve but did not renew it , Could this be my problem and can you buy those rubber valves on there own. If so what would you ask...

What is drawing me towards harness , the problem only started after I had removed inlet manifold etc to Replace glow plugs and fear I disturbed the loom ,

I have been advised today mine is one of 3 things , the wiring harness , a dodgy injector , or the fuel pressure rail Sensor. He also told me to put my bosh Maf sensor back in he said the td4 don't run well on aftermarket parts . So do I leave it in to be fixed or change the parts starting with...

Were you able to buy just the rubber valve on its own. Thanks

Then I presume this would not cause a misfire on td4 engine at a certain rpm level as in mine at 2500 rpm. Taking into account I don't appear to have any pressure worth at dip stick etc.

That's good then I should have no worry as I don't seem to have pressure build up and also have oil separater fitted.

What does the rubber valve do and what trouble does it throws up if faulty. does anyone know if you can buy it on its own . Cheers.

I have egr bypass on mine but waist of time if manifold not cleaned properly, Took me a week to clean mine , every time you think it's cleaned you get more grunge , I steeped mine in oven cleaner for 2 days but even then it took some work.

Then more oil more smoke surely.

After speaking to a bmw guy he told me very seldom that rubber needs changed and thinks the oil seperater is also A waiste of time if you change the fibre filter as should be done , another interesting thing is he told me the silicone hoses were for show and if the origanal hoses are keep good...

Can you buy it on its own. Don't know proper name for it. Lol

Don't under stand , the red rubber valve was cleaned and check to the point where as far s possible as in putting air in caused the rubber to close the spring allowing air through into other chamber. As for non service items such as inlet manifold , sensors etc I think cleaning is always a...