P219B Bank 2 Air/Fuel Ratio Imbalance

2011LR4LUXAA

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Hi,

I was driving my 2011 LR4 today and the check engine light came on. I pull the GAP scanner out to read the code and got this code: P219B Bank 2 Air/Fuel Ratio Imbalance. I tried to cleared it and see if it go away but it didn't. I figured there is something more serious that needs to be address. I did a little research on this and could be a O2 sensor, mass air flow sensor or something more serious.

Has anyone have had this error before and what was the fix?

Any suggestions or recommendations will be appreciated.

Thanks
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jlach993

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it means there's unmetered air coming in from somewhere....most likely somewhere in the exhaust. do a smoke test on the exhaust and see if there are any leaks you need to weld. It could also be an o2 sensor failing.
 
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