ECL and O2 sensor
#2
the CEL will come on when the O2 isnt working properly.
IF the ECU throws a code, the CEL will come on. it however might not stay on, however the code will be stored and can be retrieved until the memory is cleared.
IF the ECU throws a code, the CEL will come on. it however might not stay on, however the code will be stored and can be retrieved until the memory is cleared.



