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








1. Evaporative Emissions (EVAP) Purge Solenoid
2. Ignition Control Module (ICM) - Odd
3. Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
4. Knock Sensor (KS) 1
5. Engine Oil Pressure (EOP) Switch
6. Intake Manifold Runner Control (IMRC) Solenoid






1. Camshaft Position (CMP) Sensor
2. Ignition Control Module (ICM) - Even
3. Throttle Control Actuator(TAC) Module (Part of Throttle Body)
4. Engine Coolant Temperature Sensor (ECT)
5. Engine Control Module (ECM)
6. (Crankshaft Position (CKP) Sensor
7. Heated Oxygen Sensor (HO2S) Bank 2 Sensor 2 (Pigtail Connector Location)
8. Knock Sensor (KS) 2
9. Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1