Heated Oxygen Sensor Before Catalytic Converter, Bank 2

Heated Oxygen Sensor before Catalytic Converter, Bank 2

Special tools, testers and auxiliary items required

• Hose Clamps Up to 25 mm dia. (3094)





• Ring Spanner 7-piece Set (3337)





Removing

• All cable ties unfastened or cut open on removal are to be re-attached in same position on installation.

- Remove rear engine cover - arrows -.





- Remove cover - 1 - on left side of engine compartment.





- Pinch off coolant hose - 2 - with Hose Clamps Up to 25 mm dia. (3094) and detach at coolant expansion tank.





- Remove coolant expansion tank - arrow -.

- Disconnect wire to Engine Coolant Level (ECL) Warning Switch -F66- at bottom of expansion tank and lay coolant expansion tank with attached coolant hose - 1 - aside.

- Use suitable plug to seal connection, if necessary.

- Take connectors - 1 - to - 4 - out of holder on left side of bulkhead.





- Disconnect connector - 4 -.

- Remove holder at bulkhead.

- Remove heat insulation sleeve at wiring harness and separate wiring harness.

- Lay free Heated Oxygen sensor (HO2S) wiring.

- Remove Heated Oxygen Sensor (HO2S) - arrow - using Support Tool (3369).





• Illustration shows engine removed.

Installing

Install in reverse order, paying attention to the following:

• Threads of new Heated Oxygen sensor (HO2S) is coated with assembly paste which must not be allowed to go into openings in probe.

• Re-attach all cable ties at same location on installation.

Tightening Specifications





* If a Heated Oxygen sensor (HO2S) is to be re-used, grease thread only with hot bolt paste. This must not be allowed to go into openings in probe.