W124 o2 sensor eha relationship

gt-83

Active Member
Joined
Jan 15, 2008
Messages
307
Location
norwich
Car
1992 300ce
In my never ending quest to get my car running right, could somebody confirm my ideas on the o2 sensor-EHA relationship
Am i right in thinking that if the o2 sensor detects rich running, it will adjust the EHA via the ecu, and cause my cut out at warm temperature?, ive tested the sensor, and the heater bells out, and is giving a reading of 0.45 volts on the black (ecu) wire

As disconnecting the sensor the car runs as it should, OR is it just a case of another link out of the ke system and everything is fine

Any one component that is disconnected and the car runs fine
 

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