Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHONDA2011CR-V EX, 2.4 RE3, MZJAREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMPGM-FI SYSTEMSECONDARY HO2S REPLACEMENT
2011 Honda CR-V EX, 2.4 RE3, MZJA
Secondary HO2S Replacement
2011 Honda CR-V EX, 2.4 RE3, MZJASECTION Secondary HO2S Replacement
Special Tools Required
O2 Sensor Wrench Snap-on S6176 or equivalent, commercially available
- Raise the vehicle on a lift.
- Disconnect the secondary HO2S 4P connector (A).
- Remove the secondary HO2S (Sensor 2) (B).
- Install the parts in the reverse order of removal.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.