Sensors SL 350 R231

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Bayleaf

Active Member
Joined
Dec 18, 2020
Messages
254
Location
Stockport
Car
SL350 R231 2013
Hi I getting a couple of intermittent P Codes.
1 P221401 - 02 sensor signal biased / stuck lean bank 2 sensor 3
2 P221401 NOx sensor circuit range / performance bank 2
I attained these codes using my icarsoft MB V1.0 scanner. I don't know if it's relevant but the codes have only appeared since using E10 fuel that is now used in the UK.
Any thoughts. And could someone direct me as to where these sensors are situated.
__________________
2013 SL 350 Palladium Silver.
 
Hi I getting a couple of intermittent P Codes.
1 P221401 - 02 sensor signal biased / stuck lean bank 2 sensor 3
2 P221401 NOx sensor circuit range / performance bank 2
I attained these codes using my icarsoft MB V1.0 scanner. I don't know if it's relevant but the codes have only appeared since using E10 fuel that is now used in the UK.
Any thoughts. And could someone direct me as to where these sensors are situated.
__________________
2013 SL 350 Palladium Silver.
My 2012 r231brought up nox sensor (engine light) codes , reset ok now only use 99 Ron Tesco momentum or shell ultimate
 

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