Towing our car trailer home last week we were about an hour and a half from the ferry port at Holyhead when the FL2 suddenly started losing power. There were no warnings in the instrument cluster. We managed to find refuge in a service station and a quick check with my code reader showed P0234 - turbo overboost. I cleared the code and it didn’t reappear on restarting the engine but decided discretion was the better part of valour and called Greenflag to get us home. The FL2 was able to be driven on and off the four different transporters that were needed to get us home, and it towed the trailer on and off the ferry without any problem, and the fault code didn’t reappear. So I’m now wondering what to do next. It seems to be driving normally although I’m loathe to take it out on the open road lest I grind to a halt as Greenflag wouldn’t rescue me a second time for the same problem. The lack of any warning in the instrument cluster seems odd as it definitely felt as though it was in limp mode. Would simply clearing the code take it out of limp mode and if so, can I expect the problem to return? And what might the problem be?

All suggestions gratefully received.

This was my experience a few years ago:

https://www.freel2.com/forum/topic35091.html?highlight=p0234 (Now Sold). 2008 Freelander 2 (Nazca Sand) SE TD4 Auto. Statutory write off & on WOVR for hail damage but still road legal.
171037Km as of 09/05/22
Superchips Bluefin Flash
Nanocom Evo II (also sold)

https://www.freel2.com/forum/post386536.html#386536

Might help??

Haha, great minds!! You beat me to it!

Thank you both. I’ll get this checked out

Any thoughts on why there was no fault message and why it seems - and I use the word advisedly - to be running ok again?

Sorry, no ideas from me. Best of luck in sorting it quickly.

Thanks.

Badger51 wrote:

This was my experience a few years ago:

https://www.freel2.com/forum/topic35091.html?highlight=p0234

Simon J wrote:

Towing our car trailer home last week we were about an hour and a half from the ferry port at Holyhead when the FL2 suddenly started losing power. There were no warnings in the instrument cluster. We managed to find refuge in a service station and a quick check with my code reader showed P0234 - turbo overboost. I cleared the code and it didn’t reappear on restarting the engine but decided discretion was the better part of valour and called Greenflag to get us home. The FL2 was able to be driven on and off the four different transporters that were needed to get us home, and it towed the trailer on and off the ferry without any problem, and the fault code didn’t reappear. So I’m now wondering what to do next. It seems to be driving normally although I’m loathe to take it out on the open road lest I grind to a halt as Greenflag wouldn’t rescue me a second time for the same problem. The lack of any warning in the instrument cluster seems odd as it definitely felt as though it was in limp mode. Would simply clearing the code take it out of limp mode and if so, can I expect the problem to return? And what might the problem be?

All suggestions gratefully received.

Thanks, Jules. Would you be able to post a link to the relevant text?

Its a pdf file - you'll need to download it from this forum . Go to Home/General...

The relevant pages are 1024-1031 - its made very clear what you need to do to free up the vanes.


PS I'm correct about the worm drive. Jules

Thanks, I have the pdf so getting the page numbers is perfect.

P.S. Yes, I’d noticed the reference to the worm drive!

This seems like a good place to start and I’ve printed the relevant pages to give to my local garagista.

Thanks again.

 Jules

I haven’t had a chance to get the actuator rod checked but I drove the car about ten miles this morning and it felt absolutely normal. No further fault code. I wonder if it was a momentary turbo issue when towing that hasn’t returned when not towing. It’s for MOT on Friday so I think I’ll leave well enough alone until that’s safely accomplished.

Before investigating the actuator rod I decided to throw some Wynn's Turbo Cleaner in the tank as Wynn's claim it “cleans and frees sticking vanes of the variable turbo”. From what I've read over the last few days it would seem that a momentary overboost when under load, e.g. towing up a hill, is not uncommon, and not just with FL2s. I’ve a decent run to do tomorrow so hopefully the Wynn's will work its magic but in any event, the problem hasn’t returned. However I now have a Bluetooth OBD scanner plugged in and my iPhone app can clear codes. 🤞🤞🤞🙏🙏🙏