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: Locations

Refer to image items below for HO2S locations.

[R]=Expendable Parts:




1. Main silencer
2. Presilencer
3. Three way catalytic converter
4. Front pipe
5. EGR pipe
6. Heated oxygen sensor (front RH)
7. Insulator (RH)
8. Warm up three way catalytic converter (RH)
9. Charge air cooler (LH)
10. Coolant fan section
11. Condenser fan
12. Heated oxygen sensor (front LH)
13. Insulator(LH)
14. Warm up three way catalytic converter (LH)
15. Heated oxygen sensor (rear RH)
16. Heated oxygen sensor (rear LH)