Well been checking & elsawin shows the sensors in the wiring side but doesnt show within the workshop guide, I reckon they're inside the pedal tbh, also been reading some forums & some people seem to think its related to the coolant sensor aswell, cant see how but hey anythings worth a read, but check through measuring blocks in engine 01 with vagcom & see if you can find the G79 block that you can test if its reading the thottle sensor with pedal presses, believe you can do without engine started, check this & also google where is G79 sensor.
http://forums.tdiclub.com/showthread.php?t=202660
I'll continue to look mate, but check these things out cause if it isnt sensing in measuring blocs then could be wiring or the pedal again, you sure they stuck new one on the car?
You also say its only when its wet, so this would possibly suggest wiring is getting wet & shorting out somewhere, maybe a wire has been damaged somewhere, check where the pedal wires go & follow through with a torch & see if you can see anything at all mate, cause if was sensor it would do dry or wet imho tbh, also you say its with cruise but it only does when wet with cruise & doesnt happen straight away, this seems to point me to wiring again & shorting somewhere, the power loss is most likely a safety factor tbh.
http://www.ross-tech.com/vag-com/m_blocks/060-069.html
http://www.ross-tech.com/vag-com/m_blocks/
As I said mate after chekcing more info, the sensors have a safety factor so if one fails other is there & if they both dont match up then car is put into limp mode, guess it stops the car from shooting of when pedal is faulty, if you get me, this thread also advises like I have, wiring, pedal:
http://www.tt-forum.co.uk/forum/vie...ghlight=&sid=c948b39934619c78a66f3e2300853dd5