Hi everyone,

Hopefully there is someone here who can help me

I have a 2006 9-3 2.8 V6.

It will run fine (usually when starting for the first time) for usually about 5-10 minutes at which point it will lose a lot of power, idle rough etc
Engine management light is on.

The error code reads "misfire bank 2, cylinders 2, 4 & 6"

The mechanic suggested I should replace cam sensor on bank 2. Could it be cam chain stretch?

Any ideas yourselves?

Thank you