520 2.2 i6 power loss and misfire
hi there new to the forum first post so go easy :) well iv got a 2003 520 2.2 i6. the car has lost most power feels like a 1litre engine! i had it scanned it had 10 codes 6 of wich were cyl misfire's and multiple misfire also fuel trims were present. iv replaced all the plugs as they looked like they'd had it also replaced the cam cover gaskit as this had leaked oil into a cuple of the coil packs/plugs. i have read a lot about the ccv coursing these issues and also fuel related such as fuel pump. i am trying to find away of diagnosing the ccv system as believe it to be at fault but do not want to spend more money were not needed. iv read a few threads on the ccv but still yet to come accros a way of testing it that i understand. i am going to try get the compression on the cylinders checked aswell before buying any more parts. i have also been reading about the vanos aswell and have not ruled this out as of yet! if anyone can shed some light on ruling out any of these possible faults i would be very greatful. i will say sorry now for my grammer/spelling !
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