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Because coding will solve for very minute tolerances that aid smooth running, but not account for the heavy smoking or running issues being described here. The coding represents very tiny microscopic differences in mechanical variations. I’ve been around diesels many years now, this issue is...

Recoding injectors won’t solve that.

Have a look inside the glovebox there is a switch to disable the trunk I believe, that might just be pressed.

To me this is a classic injector issue. I’ve not read the thread back to back but sounds like you just need 4 known good injectors from a running car.

It’s really down to the tester on the day and which side of bed they woke up on that morning.

Misfiring will be down to a bad injector mate. Try running a leak back test before removing them all again

Ah sorry hadn’t realised it was already egr off, I only scan read the thread. It’s worth giving the injectors some time to bed in properly and running some additive through. It’s going to be a fuelling issue now.

Those results look a lot better. I personally think your egr is slightly stuck open and leaking internally. Would suggest blanking temporarily to see if it cures it and then decide if you want a permanent solution.

Get the car properly inspected and diagnosed, this is no way to diagnose a fault. Even our advice is based on guesswork at this stage.

Nope I mean the engine remap. If you’re seeing white smoke and can hear knocking like that, and are confident your injectors are not the issue then in my experience with these engines it’s a poor quality remap.

That my friend is a bad map.

It runs lean? If it’s smoking then it’s running rich not lean.. can you video the issue and the sound. If it had jumped a tooth it wouldn’t start..

You may have split a boost hose.. check for leaks. But if it’s knocking then it might be as simple as a leaking injector or worse, internal damage.

How long has it been remapped and has this started straight after or just randomly? Does the car exhibit any other issues?

You need to have some diagnostics run but given you’ve got a remap, it’s also possibly a poor software calibration. Otherwise check for boost leaks and leaking egr.

Yes it does. Don’t try any bodge method or you will likely break the housing. You need this: https://www.ebay.co.uk/itm/303599024570?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=iHKeqmAfRCe&sssrc=4429486&ssuid=f3nnn2MXTQK&var=&widget_ver=artemis&media=COPY

There are many subtle but important differences between the pre and post facelift cars, and I couldn’t possibly name them all. Fundamentally the facelift cars are overall a more accomplished car which feel and drive tighter, have improved sound absorption, improved engine management and software...

I’ll bow to your superior knowledge on this topic mate, I know you work in the lubricants industry.

Nope I don’t recommend any specific brand.

I’ve seen this several times now on the idtec engines. It’s always a failed oil cooler.