M.Afzaal.Khan wrote: > Quite Informative ,. > On my 300se with the KE variation I would have assumed the EHA had gone > bad and not the O2 sensor.
EHA? I'm not familiar with that acronym. > Recently I replaced the lambda sensor. and got the Bosch generic > version for the 126. but you loose out on the two white wire heater > connections. Originally the plug has a white dot on one pin. these heater > wire connected one way give a faster response on the diagnostic pins 2 and 3 > for the duty cycle.Of course there could be variations on the USA versions > compared to European models. Interesting! I would never have expected a heater to be polarity-sensitive.
