Codes P0154 & P0134 o2 sensor
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Newbie
Joined: Apr 2021
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E-class w211
Codes P0154 & P0134 o2 sensor
Hi
I Have a problem with my mothers w211 E-class, v6 engine year 2002. She have had the car to a company that change the two o2 sensors uppstream cat. But the car still have the same codes and light comes on after drivning 8km.
The say it may be the ECU that is the problem, but they aren't sure. So I wounder if someone here have had the same problem and could tell me were to start looking. I have checked wires from ecu down to o2 sensor and the seems fine.
There are no fuses or relay to the sensors what i can see.
I Have a problem with my mothers w211 E-class, v6 engine year 2002. She have had the car to a company that change the two o2 sensors uppstream cat. But the car still have the same codes and light comes on after drivning 8km.
The say it may be the ECU that is the problem, but they aren't sure. So I wounder if someone here have had the same problem and could tell me were to start looking. I have checked wires from ecu down to o2 sensor and the seems fine.
There are no fuses or relay to the sensors what i can see.
Out Of Control!!
Joined: Jul 2003
Posts: 15,901
Likes: 4,630
From: North Scottsdale, AZ
'71 Pinto
P2082 P0154 G3/3 (Left O2 sensor, before TWC [KAT]): Open circuit
https://www.engine-codes.com/p0154_m...nz.html#causes
P200F P0134 [4] G3/4 (Right O2 sensor, before TWC [KAT]): Open circuit
https://www.engine-codes.com/p0134_mercedes-benz.html
https://www.engine-codes.com/p0154_m...nz.html#causes
P200F P0134 [4] G3/4 (Right O2 sensor, before TWC [KAT]): Open circuit
https://www.engine-codes.com/p0134_mercedes-benz.html
Junior Member
Joined: Jun 2022
Posts: 18
Likes: 1
From: Virginia
03 s600 06 e350 05 E55 AMG
Hi
I Have a problem with my mothers w211 E-class, v6 engine year 2002. She have had the car to a company that change the two o2 sensors uppstream cat. But the car still have the same codes and light comes on after drivning 8km.
The say it may be the ECU that is the problem, but they aren't sure. So I wounder if someone here have had the same problem and could tell me were to start looking. I have checked wires from ecu down to o2 sensor and the seems fine.
There are no fuses or relay to the sensors what i can see.
I Have a problem with my mothers w211 E-class, v6 engine year 2002. She have had the car to a company that change the two o2 sensors uppstream cat. But the car still have the same codes and light comes on after drivning 8km.
The say it may be the ECU that is the problem, but they aren't sure. So I wounder if someone here have had the same problem and could tell me were to start looking. I have checked wires from ecu down to o2 sensor and the seems fine.
There are no fuses or relay to the sensors what i can see.
