Hello. I got a code for my audi a6 2005 p0341(camshaft position sensor). I checked sensors- they are good.My question is: what voltage should be on the pins coming to sensors.? I have ground-5v-5v. I'm pretty sure one of them should be 12V. My mechanic told me he's 100% sure it's ecu malfunction. i'm not so sure about it, and still thinking timing maybe off. What else can cause low voltage on sensors?