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

O2 Sensors, Location




O2 Sensors, Position




Engine 112, 113
G3/4 O2 sensor on right, upstream of TWC
G3/6 O2 sensor on right, downstream of TWC




Engine 112, 113
G3/3 O2 sensor on left, upstream of TWC
G3/5 O2 sensor on left, downstream of TWC




Position on engine 137
G3/7 O2 sensor on left upstream of TWC Cylinders 7 - 9




Position on engine 137
G3/8 O2 sensor on left upstream of TWC Cylinders 10 - 12




Position on engine 137
G3/9 O2 sensor on right upstream of TWC Cylinders 1 - 3




Position on engine 137
G3/10 O2 sensor on right upstream of TWC Cylinders 4 - 6




Position on engine 137
G3/11 O2 sensor on left downstream of TWC Cylinders 7 - 9
G3/12 O2 sensor on left downstream of TWC Cylinders 10 - 12




Position on engine 137
G3/13 O2 sensor on right downstream of TWC Cylinders 1 - 3
G3/14 O2 sensor on right downstream of TWC Cylinders 4 - 6