Hi, the other day i noticed when i started my car (2004 2.0 tdi) the engine jumped to 1600 revs before settling at normal tickover 8-900. Like i had started it with part throttle. Next both the fans on the radiator were running at full speed even tho the temp guage was still at 50 degrees C. I got a friends code reader on it and the 2 main codes thrown were: 19463 camshaft position sensor (G40): No signal P3007 - 000 - - - Intermittant and 16502 - Engine coolant temp sensor (G62): Signal too high P0118 - 000 - - Having done a search of this forum i had a read and decided to change the coolant temp sensor. I replaced the temp sensor twice (just incase i picked up a faulty one) and still as soon as the i put the ignition on the fans run at full speed. Anyone got any advice or tips before i take it to audi as ive just moved house and really cant afford audi prices at the moment, thanks.