'10 335d just threw a P20EE code - BMW 3-Series (E90 E92) Forum

PJPHughes · 05-11-2012, 06:37 PM

Hi everyone,

I got my car back from the body shop about two weeks ago...very nice to have it back.

This afternoon, the car's Service Engine Soon light came on and it was a P20EE code....NOx sensor catalyst below threshold. I guess that means I'm generating too much NOx. My mileage seemed to be quite low too...my computer said 17mpg average, which is pretty horrible for a diesel.

Will be taking it in next week for service!

Cheers,
Paul

PJPHughes · 05-12-2012, 11:27 AM

Once I got the car out on the road, it was fine..got 40.5mpg at 72mph on the freeway.

I wonder if this means I need a new cat?

Socom · 05-12-2012, 12:26 PM

I suspect part of emissions recall. Until the recall has been completed I'm holding off on any judgment of emissions issues.

05-11-2012, 06:37 PM	#1
PJPHughes Private First Class Drives: '10 335d Join Date: Aug 2008 Location: Los Angeles, CA Posts: 152 iTrader: (1)	'10 335d just threw a P20EE code Hi everyone, I got my car back from the body shop about two weeks ago...very nice to have it back. This afternoon, the car's Service Engine Soon light came on and it was a P20EE code....NOx sensor catalyst below threshold. I guess that means I'm generating too much NOx. My mileage seemed to be quite low too...my computer said 17mpg average, which is pretty horrible for a diesel. Will be taking it in next week for service! Cheers, Paul
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05-12-2012, 11:27 AM	#2
PJPHughes Private First Class Drives: '10 335d Join Date: Aug 2008 Location: Los Angeles, CA Posts: 152 iTrader: (1)	Once I got the car out on the road, it was fine..got 40.5mpg at 72mph on the freeway. I wonder if this means I need a new cat?

05-12-2012, 12:26 PM	#3
Socom Brigadier General Drives: 2010 335D Join Date: May 2005 Location: USA Posts: 4,749 iTrader: (0)	I suspect part of emissions recall. Until the recall has been completed I'm holding off on any judgment of emissions issues.