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

Secondary HO2S Replacement

Secondary HO2S Replacement

Special Tools Required
02 sensor socket wrench, Snap-on YA8875 or SWR2, or equivalent, commercially available

Front Bank (Bank 2)
1. Disconnect the front secondary H02S 4P connector (A), then remove the front secondary H02S (B).






2. Install the parts in the reverse order of removal.

Rear Bank (Bank 1)
1. Disconnect the rear secondary H02S 4P connector (A), then remove the rear secondary H02S (B).






2. Install the parts in the reverse order of removal.