A throttle sensor error will trigger limp home mode (virtually no power whatever throttle you select)

Are you not getting a limp mode error on the dash?

As far as I'm aware, there are 2 sensors, one counts "up" and the other counts "down". The ecu compares both values and applies the correct amount of throttle accordingly, if the ups and downs do not match, you will IMMEDIATLY get limp mode (safety measure) only cleared by stopping the car for a length of time. RRS gone
Audi SQ5...Gone Audi Q7 S-Line 240 3.0TDI Gone
Audi A6 Allroad Sport 270 3.0TDI

next time it does it, have a glance at the water temperature gauge too ============
2010 TDV8 HSE - ooo laa laaaaaaaaa
2007 TDV8 HSE - superb car and very reliable
============
2012 - dearly departed, sadly missed.. to return in late 2013 with a new TDV8!

No limp home mode, I used to get that in my last one, "safe mode".

I'll check the water temp, why would this be a factor? Long suffering Land Rover owner

it also causes limp home.. if ECU thinks engine is overheating, it will cut the power to protect it from damage.. I experienced first hand several times going up hill.. turned out a lead to the fan was not connected, meaning the fan wasn't working

there is also a recall for fan wires that were plumbed in back-to-front meaning the fan rotated the wrong way ============
2010 TDV8 HSE - ooo laa laaaaaaaaa
2007 TDV8 HSE - superb car and very reliable
============
2012 - dearly departed, sadly missed.. to return in late 2013 with a new TDV8!

Strange thing about this problem, is there is no fault showing on the dash, it only shows up when the technician plugs his laptop in. Then it shows the car traveling along, and then the engine goes to idle. Long suffering Land Rover owner

rrsboy wrote:

it also causes limp home.. if ECU thinks engine is overheating, it will cut the power to protect it from damage.. I experienced first hand several times going up hill.. turned out a lead to the fan was not connected, meaning the fan wasn't working

there is also a recall for fan wires that were plumbed in back-to-front meaning the fan rotated the wrong way

mse wrote:

Ive also see mud and similar clogging airflow over radiators triggering overheating and limp home mode - not on a sport though, but its possible.

some Sports do get clogged

Click image to enlarge

Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated  ============
2010 TDV8 HSE - ooo laa laaaaaaaaa
2007 TDV8 HSE - superb car and very reliable
============
2012 - dearly departed, sadly missed.. to return in late 2013 with a new TDV8!

i more meant ive never seen the clogging fault on a sport - other products yes (defender did it for a spell) but not the disco or sport

Only show me photos when the pressure washer cant remove it after 3 or 4 washes!  Mike

2014 Facelift Discovery

[quote="mse"Ive also see mud and similar clogging airflow over radiators triggering overheating and limp home mode - not on a sport though, but its possible.[/quote]

Had the same thought, I recall the puma defender not liking Salisbury Plain mud. No indication of overheating on the needle, but instant limp home on the third lane of the motorway due to overheating  

"Roads ? Where we're going there are no roads." Back to the future.

You are correct, although I cant fully remember what the issue was as i dont think it was clear cut eg: this MY + Clog = Fault

Anyway, the results were similar...and as mentioned not indicated as you would expect. Mike

2014 Facelift Discovery

Land Rover eventually found the fault. It was "the car getting stuck in 3rd gear, and occasionally 6 or 7.

Now sorted, new vehicle getting delivered end of November, with a mileage contribution from me! Long suffering Land Rover owner

Did you end up rejecting the vehicle or have you just ordered another new one

Rejected it. Long suffering Land Rover owner