NTK O2 sensor detects ideal air fuel ratio
■ Replace the O2 sensor...
Comfortable Running Back
Stable Idling
Better fuel economy
■O2 sensor check time: More than 5 years from a new car or more than 80,000 km (depending on the usage conditions of the vehicle).
(If you continue running with a degraded O2 sensor...
If the O2 sensor degrades may cause deterioration of the catalyst or degradation of performance. As a result, harmful substances in exhaust gases may increase.
If the proper detection is not possible, the fuel will always be darker than the theoretical air fuel ratio and your fuel economy will be poor.
(Such symptoms may cause O2 sensor defect)
Engine check MIL lamp.
Due to the CO check during vehicle inspection, there is too much CO emissions.
Poor fuel economy and emissions smell
Please be aware in advance that the posted images are samples