O2 Oxygen Sensor Upstream Downstream for Honda CR-V (2002-2004) 2.4L

Direct-Fit Upstream & Downstream O2 Oxygen Sensor Kit for 2002-2004 Honda CR-V (RD6/RD7)

What it Does: This matched upstream and downstream oxygen sensor kit measures exhaust oxygen concentration on the 2002-2004 Honda CR-V (RD6/RD7) equipped with the K24A1 2.4L engine to regulate air-fuel trims and monitor catalyst efficiency.

The Stock Honda CR-V Sensor Degradation

On the RD6/RD7 chassis powered by the K24A1 2.4L engine, factory oxygen sensors degrade from extreme exhaust heat cycles and oil or coolant contamination. The internal zirconia element cracks from thermal shock while internal heater circuits burn out, triggering P0135 or P0141 fault codes. Poisoned sensor tips produce sluggish voltage transitions, causing rich fuel trims, fouled plugs, and catalyst efficiency codes like P0131 and P0420.

Common Symptoms of a Failing OEM Oxygen Sensor

• Check Engine Light / DTCs: Heater or slow-response codes like P0135, P0141, or P0131 caused by open circuits or fouled tips.
• Rough Idle & Rich Exhaust: Sluggish closed-loop feedback forces over-fueling and creates unstable idle quality.
• Poor Economy & Failed Emissions: Inaccurate air-fuel data increases fuel burn and prevents emissions readiness monitors from setting.

The Direct-Fit Zirconia Oxygen Sensor Solution

This matched upstream and downstream kit restores factory closed-loop fuel control using high-purity zirconia elements inside laser-welded stainless housings that block moisture intrusion. Pre-terminated OEM connectors and exact harness lengths directly replace 36532-PPA-A01, 36531PRBA01, and 36531PZAA01 without wire splicing. Fast-light-off internal heaters reach operating temperature rapidly after cold starts, stabilizing fuel trims and protecting the catalytic converter.

What's Included

• 1 Upstream Oxygen Sensor
• 1 Downstream Oxygen Sensor

Technical Specifications

Compatibility

• 2002-2004 Honda CR-V 2.4L (Upstream & Downstream Positions)

Frequently Asked Questions & Fitment Warnings

Does this fit the RD6/RD7 CR-V?

Yes. This is a direct fit for the 2002-2004 Honda CR-V equipped with the K24A1 2.4L engine. Confirm your engine is the 2.4L before ordering; this kit does not fit 2005+ facelifted models or non-2.4L applications.

Will replacing both sensors clear P0135 or P0141 codes?

Yes, when caused by aged sensors. Installing this matched pair restores proper heater resistance and voltage response for OEM references 250-24477 and 250-54013, provided exhaust leaks and chassis wiring faults are absent.

Are factory-style connectors included for plug-and-play installation?

Yes. Both sensors come pre-terminated with OEM-style plugs and direct-fit leads—thread into the exhaust bungs cleanly, torque to factory spec, and clear stored OBD-II codes after installation.

The Honda Precision Standard

Built to restore factory K24A1 2.4L air-fuel metering precision, this matched sensor kit keeps your RD6/RD7 CR-V running clean and free of nuisance check engine lights. Accurate closed-loop feedback protects your catalytic converter and ensures dependable daily drivability.