Catalyst Monitor Sensor LH

2009 Land Rover Range Rover Sport (LS) V8-4.4LSECTION Catalyst Monitor Sensor LH


Catalyst Monitor Sensor LH

Service Repair No - 19.22.71


Special Service Tools





Removal
1. Raise and support the vehicle.

WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.

2. Disconnect the LH catalytic converter from the exhaust manifold.
^ Remove and discard the 2 bolts.





3. Disconnect the RH catalytic converter from the exhaust manifold.
^ Remove and discard the 2 bolts.





4. Remove the catalyst monitor sensor electrical connector heat shield.
^ Remove the 2 bolts.





5. Using the special tool, remove the catalyst monitor sensor.
^ Release the wiring harness.
^ Disconnect the electrical connector.





Installation
1. Using the special tool, install the catalyst monitor sensor.
^ Clean the components.
^ Apply an anti-seize compound to the thread of the sensor.
^ Tighten the catalyst monitor sensor to 45 Nm (33 ft. lbs.).
^ Connect the electrical connector.
^ Attach the wiring harness.

CAUTION:
^ Make sure the anti-seize compound does not contact the catalyst monitor sensor tip.
^ Make sure the catalyst monitor sensor wiring harness is not twisted more than 180 degrees and is not in contact with either the exhaust or driveshaft.


2. Install the heat shield.
^ Tighten the bolts to 10 Nm (7 ft. lbs.).

3. Position the RH catalytic converter to the exhaust manifold.
^ Clean the components.
^ Tighten the new bolts to 22 Nm (16 ft. lbs.).

4. Position the LH catalytic converter to the exhaust manifold.
^ Clean the components.
^ Tighten the new bolts to 22 Nm (16 ft. lbs.).

CAUTION: Make sure there is a clearance (A) of 25 mm to 30 mm between the closest points of the LH catalytic converter and the front driveshaft.




RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.