Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Oxygen Sensor: Service and Repair


1. Disconnect Oxygen Sensor from harness.
2. Remove Oxygen Sensor from exhaust pipe.
3. Reverse procedure to install.
4. Torque Oxygen Sensor to 33 lb.ft. (45 Nm).

Note: Apply anti-seize compound to Oxygen Sensor threads, being careful NOT to get any on the protection tube, prior to installing.