Oxygen Sensor: Service Precautions

MAINTENANCE PRECAUTIONS
a. In the event of engine misfire, these precautions should be taken.
1. Check proper connection of battery terminals, etc.
2. Handle high-tension cords carefully.
3. After repair work, check that the ignition coil terminals and all other ignition system lines are reconnected securely.
4. When cleaning the engine compartment, be especially careful to protect the electrical system from water.

b. Precautions when the handling heated oxygen sensors.
1. Do not allow oxygen sensor to drop or hit against an object.
2. Do not allow the sensor to come into contact with water.