Hi chris

How would the cam shaft sensor affect the readings from the oxygen sensors?

I think bank 2 is the drivers side?

I have found one on eBay for £11.95 - I will buy this and replace it anyway for the cost.

I am going to have a general look around the engine bay tomorrow and check for vacuum leaks and clean the MAF sensor

I have been doing some research today trying to match up the dec codes with the "P" codes. this is what I have so far

114/8 - P0345 - cam shaft position sensor 'A' circuit bank 2
28/255 - P1158 - fuel trim adaptation additive low bank 1
29/255 - P1158 - fuel trim adaptation additive low bank 2
26/66 - P0171 - system too rich bank 1
40/1 - P0420 - catylist system efficiency below threshold bank 1
160/36 - ????? - O2 sensor bank 2 sensor 2 ?????? not sure on this one

I read today that 26, 28, 29, 40 can all be down to vacuum leaks at the inlet manifold or a dirty / faulty MAF sensor

do you agree with the codes?

Tony

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E61 525i 2004 M54 Auto
E46 320i 2002 M54 Auto
E46 330i 2003 M54 Sedan Manual