Originally Posted by schism
Nice to have found this thread. Getting this code on our FXT, funny, the valve seems uninhibited... Doesn't run bad outside of the motor going into 'safe mode' - no cruise, waste gate open. Could it just be 'dirty oil'? Changed it tonight, doesn't seem that bad... Bank 1 is driver side, correct?
Which code are you getting? 11 is passenger side, 21 is drivers. It could be just dirty oil but my digging around found that an oil change or cleaning & oiling the valve seems to be a temporary fix and replacement's needed to correct it. I'm going to go out on a limb here and say it's not your banjo bolt because I've yet to see anyone actually post proof that something went wrong because of the bolt, everyone just talks about it.
The way I see it 3 things can affect the OCV valve(s)
1. incorrect oil pressure
2. valve failure
3. dirty oil
Good luck, let us know how it turns out.