When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
P20EE SCR NOx catalyst efficiency below threshold Bank 1 Error
Hi All,
My wife's 2015 A207 engine management light came on last week and when I checked it with my Carsoft scanner it showed P20EE SCR NOx catalyst efficiency below threshold Bank 1 Error and I cleared the error and it's come back again so I googled it didn't help narrow down the root cause of issue much.
Does anyone have advise on good starting points for getting to the bottom of this from experience ?
I have the same problem and I was wondering if you find out the cause of this? as my car does weird things and does not have any errors when I scan it with my iCarsoft.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
