[bmdave]

Hi all,
I have a problem where limp mode (big half engine light) comes on every few days and usually in the same spot on the way to work.
I have to pull over,switch off then on then im on my way.
Once it did come on and i could not reset for weeks.i swapped pedal for another from same model and did clear it.but 100m down street come back on.i then put old pedal back in and was fine for a few days till it happen again.
I have been to bmw and 3 differnt mechanics but no one can find the fault.
I did connect scan tool when it happen once and codes...
2d1a, 2d1b and 2d1c come up and were the only codes that come up which leads to accelerator pedal.
I was also advised to change throttle body which i have done but did not help the problem.
Any help would be much appreciated.