OK, so now a list of fault codes if you can ?

I did a 2.25 diesel conversion on my friends 80" many years ago. We used it as our wedding car 21 years ago... I fabricated steel engine mounts to match the 80" chassis so no mods to the chassis were done.I fully rebuilt the engine at the time and it has done plenty of work since,regular trips...

You need to find a tech with better understanding.The 12.17v is meaningless, you need to monitor the battery voltage during starting and also what it is doing whilst running.Batteries get a good kicking during cold weather,especially with short journeys,so to see this figure after a short...

Yes, please list clearly ALL the logged codes. That it behaves once the engine is hot indicates to me that its very likely low battery voltage causing it. Forget that you have been told the battery is OK, what needs to be done is to monitor the battery voltage with a scope whilst starting from...

For anyone doing this job,checking piston protusions is a must.

Wammers,you do realise you are being "educated" by the world's leading expert on diesel engine theory and practice...;):confused::rolleyes:

Where do I send the invoice ?;)

Many TD5 injectors get blamed,tested or replaced when there is nothing wrong with them. I have been asked to look at loads of them over the years where owners and garages have replaced injectors to cure rough running issues,with no improvement. I scope the current draw of the starter motor to...

Starter motor is arching,fit a new one.(The arching is corrupting the signal from the crankshaft position sensor)

Ozzyboy, sorry to disappoint you, but the 110 is fixed and finished,wastegate seized solid - now free and working properly. Actually,once again you are wrong,if anyone has anything interesting to say I'm more than interested, every day is a new day to learn something. Luckily many years ago one...

At this point I have lost any interest in this thread,your childlike rantings with such poor spelling and punctuation do nothing to encourage anyone to read, or learn from this thread.(And you can clearly do better) Again I have stated that my answer had only one intention,to help to answer...

Because quite simply it won't tell you what the ecu is seeing - as the ecu is responsible for fuelling the engine therefore making the decision of when overboost is occuring, can you not see that this is the FIRST part of the diagnostic process to give an answer to Rustyskull's original question...

Ozzyboy, I have nothing to prove,no intention to upset anyone,just like to help if I can. Your last post is difficult to read,as if it was typed in a rage. I'll happily delete it all if you wish.

I seem to remember having slightly the opposite problem with mine,I walked past it one day and heard the injector pump buzzing - even though the car was locked and alarmed... Turned out that water had got into the electrics in the drivers footwell and shorted out the engine ecu relay so it was...

Just check that the weld has not cracked at the end of the axle tube,they have been known to separate...

Not trying to be clever,I have nothing to prove to anyone.Just trying to help someone with a problem.Rustyskull asked a question - What is considered overboost and is that what his truck is suffering from.He stated that the only change to his Disco is the turbo,its still running a stock ecu...

FFS, I'm just trying to answer the OP's original question from the point of a diagnostic process.Feel free to fit any gauges you like,they may or may not help you,but in the OP's case he needs to see what the ecu is seeing,I can't state it any more simply than that.

OK, I only work with factory supplied info,not seen that site before,thank you !

Interesting that you state 242Kpa,I never managed to get any factory SIDS for the TD5, I was only supplied with Rave discs from Omitec.I don't remember seeing any actual figures in them for max boost,maybe I never looked ! What I do remember is plenty of road testing with Testbook set up showing...

OK, let me put it another way, the only thing that matters is what the ecu "THINKS" is happening. You can ignore this all you like,but if the ecu thinks its overboosting it will cut fuelling. Yes, it is nice to see what is actually going on in terms of boost,but its all secondary to the OP's...