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P0431 P0021

Posted: Thu Feb 06, 2014 11:01 pm
by BadWaz
Two fault codes pulled using VCDS.

Re: Fault codes P0431 P0021 - any experience?

Posted: Thu Feb 06, 2014 11:35 pm
by Rick_RS4
fault codes take 3 cycles of ignition to store a cel on the dash, so it might come back

Re: Fault codes P0431 P0021 - any experience?

Posted: Fri Feb 07, 2014 9:28 am
by BadWaz
Oh dear.I have a feeling that this is going to cost me. Three days into f***ing ownership :rant:

(This may simply be due to a required oil change, as the fault codes have not returned during todays driving - (for any future search results))

Re: Fault codes P0431 P0021 - any experience?

Posted: Wed Feb 12, 2014 2:31 pm
by BadWaz
Intermittent sticking solenoid for cam chain tensioner (occurred once), and emission (catalyst) error due to full Miltek system.