Component responsible for measuring the concentration of oxygen present in the exhaust gases in such way that the air-fuel mixture in the engine combustion process is adapted.
LOCATION
The upstream oxygen sensor is located above the catalytic converter and the downstream oxygen sensor is located behind.
COMMON FAULT SYMPTOMS
- The vehicle jerks when starting
- Higher fuel consumption
- Lower engine power
- Increase in the emission of polluting gases
POSSIBLE FAULT SYMPTOMS
- Pollution
- Excess lead
- High oil consumption
- Excessively rich air-fuel mixture
