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)

Or, hide this message: temporarily or permanently

Downstream O2







DOWNSTREAM O2





1. Apply anti-seize compound to the threaded portion of the O2 sensor.
2. Install the O2 sensor (1). Tighten to 50 Nm (37 ft. lbs.).
3. Connect the O2 sensor harness connector.
4. Lower the vehicle.
5. Connect the negative battery cable.