Oxygen Sensor Hints and Tips

Do support the wiring to ensure it does not come in contact with the hot exhaust system. Allow some slack for engine movement during acceleration.
Do use an oxygen sensor socket to remove and refit the sensor.
Do use only sensor safe anti-seize compounds and sealants.

Do not use sensors with leaded fuels or lead substitutes.
Do not use silicone based sealants during engine repair or assembly.
Do not paint sensors or the associated wiring.
Do not clean oxygen sensors.
Do not cut and join the sensor cables with standard butt connectors. Only use the special Bosch Joiners. The wiring must breath.
Do not solder the wiring as this prevents the flow of reference air to the sensor.
Do not use high pressure cleaners on the sensor and /or wiring.
Do not hose down a hot sensor.
Do not use any contact cleaner or sealants in the connector
Do not allow excessive water in the exhaust system ( blown head gasket) can fracture the sensor.