I thought the egr mite help but I think there are still other probs ,I've got injector cleaner in the tank at the mo,and planning to get it on a live data reading too to see what that says ,my mechanic did say that sometimes you have to run the car for a bit so obc can learn and make alterations to what you have done
Nodge68
Well-Known Member
You need to check the MAF readings. This can upset the TD4 if it's not correct. The engine temperature needs to be correct too. It common for the thermostat to stick open, causing running issues. Also it's well worth removing the inlet manifold for a clean. The EGR system really clogs it up. It one port is coked up, black smoke will still be evident.
As far as I'm aware, the TD4 ECU isn't particularly adaptive to general engine running. It has only minor compensation abilities on some sensors. If the sensors are outside the normal compensation window, a substitute value is given. This is why a bad MAF causes such issues.
Oh lastly. The TD4 doesn't like cheap supermarket fuel. Named brands are best, like BP and Shell. My TD4 is happiest on V Power.
Nodge68
Well-Known Member
Nodge68
Well-Known Member
Nodge68
Well-Known Member
Have you checked and replaced the breather filter and cleaned the PCV?
At times of low boost, it's possible for oil mist to be drawn into the intake ports.
Nodge68
Well-Known Member
A boost pipe I expect
It's a Renault 4 thermostat placed in the rad top hose. There's several threads on the inline thermostat mod on here
Nodge68
Well-Known Member
Here's one of the threads with lots of information.
https://www.landyzone.co.uk/land-rover/aluminium-in-line-thermostat-fitted.283740/
Hi nodge
It's me again,I took the car to a garage which showed up a fault with turbo boost valve,I've had that off and cleaned it all up and checked the the hoses,refitted it and was still doing the same thing,so I was a bit naughty and called the AA as I'm a member ,he came out put it on the test which showed up 1 fault which was the egr which he said was prob cause it's been blanked ,he said compression was fine but number 3 injector wasn't reading the same a story the others and that could be possibly the problem as nothing else shows up on his machine, so with my lack of knowledge I've seen some on eBay which say there good and tested with a 30 day guarantee ,just wondered what are your thoughts on second hand ones or do you think I should go another way ,would appreciate your input as this is costing me a small fortune as you can imagine, thanks
Mick
It's me again,I took the car to a garage which showed up a fault with turbo boost valve,I've had that off and cleaned it all up and checked the the hoses,refitted it and was still doing the same thing,so I was a bit naughty and called the AA as I'm a member ,he came out put it on the test which showed up 1 fault which was the egr which he said was prob cause it's been blanked ,he said compression was fine but number 3 injector wasn't reading the same a story the others and that could be possibly the problem as nothing else shows up on his machine, so with my lack of knowledge I've seen some on eBay which say there good and tested with a 30 day guarantee ,just wondered what are your thoughts on second hand ones or do you think I should go another way ,would appreciate your input as this is costing me a small fortune as you can imagine, thanks
Mick
