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Mega1879



Member Since: 31 Jul 2016
Location: Doncaster
Posts: 13

United Kingdom 
Fault code P0234 turbo overboost

Hi there hope someone can shed some light on this fault code!! P0234 keeps coming up and car goes into reduced engine performance mode, like it did today on way home from Blackpool. RAC say it's a turbocharger over boosting and could be a vein in the turbo sticking or EGR valve sticking ? If it's EGR do you know if 07 LR2 can just be blocked off or does EMU need amending also ? Any help appreciated thanks Gary

Post #309557 24th Oct 2016 1:52 pm
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RogB



Member Since: 16 Dec 2014
Location: Mansfield
Posts: 3880

England 2013 Freelander 2 SD4 HSE Lux Auto Santorini Black

Pre 2010/2011 you can just block the EGR off without any CCF amendments.

Plenty of threads on here via search on where to buy a blanking plate, how to fit, pros and cons.

Post #309560 24th Oct 2016 2:00 pm
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Mega1879



Member Since: 31 Jul 2016
Location: Doncaster
Posts: 13

United Kingdom 

Thanks for the info on the egr Rogb!! I'll get one ordered then and see if that cures the fault!! Cheers Gary

Post #309564 24th Oct 2016 2:15 pm
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daveb500



Member Since: 18 Apr 2016
Location: Tadcaster
Posts: 18

United Kingdom 2007 Freelander 2 TD4 XS Auto Sumatra Black

I had a similar problem on mine, after Land Rover told me it was the Turbo, which I didn't go with. It turned out to be the MAP (manifold air pressure) sensor. This is mounted next to the EGR valve intake on the manifold, and it get hot and oily, thus giving false readings back to ecu on the manifold pressure, since that differs from the turbo boost sensor it assumes the turbo is in over boost. Cost to repair was £36, not the £1000 + that Landrover quoted.

Post #317728 18th Feb 2017 9:46 am
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scrimple



Member Since: 07 May 2010
Location: Allington
Posts: 317

United Kingdom 2013 Freelander 2 SD4 XS Auto Ipanema Sand

Does it shudder slightly on shutdown? If so, it could be throttle body, simple job about £60 ish to buy  MY2014 SD4 XS
Ipanema Sand

MY10 TD4-e GS Manual
Lago Grey Now retired after 8 trouble free years

Post #317815 19th Feb 2017 1:37 am
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daveb500



Member Since: 18 Apr 2016
Location: Tadcaster
Posts: 18

United Kingdom 2007 Freelander 2 TD4 XS Auto Sumatra Black

on mine no. I had already changed the throttle body as it was a bit noisy. It would just drop power. Since changing the MAP sensor it has been great, plus increased the power as well. Revs much crisper.

Post #317818 19th Feb 2017 7:37 am
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