O2 Oxygen Sensor Upstream Downstream for Honda CR-V (2005-2006) 2.4L

Direct-Fit O2 Oxygen Sensor Kit for 2005-2006 Honda CR-V (RD6/RD7)

What it Does: This matched upstream and downstream oxygen sensor kit monitors exhaust air-fuel ratios and catalyst efficiency on the 2005-2006 Honda CR-V (RD6/RD7) K24A1 2.4L to maintain ECU fuel trims.

The Stock Honda CR-V Sensor Failure

On the RD6/RD7 chassis with the K24A1 2.4L engine, factory oxygen sensors endure severe thermal cycling, carbon fouling, and exhaust condensation over high mileage. Over time, the internal ceramic sensing element degrades and the heater circuit develops high resistance or opens. When upstream sensor 234-9064 or downstream sensor 234-4352 lags, the ECU defaults to rich open-loop fueling and triggers fault codes like P0135, P0141, or P2A00.

Common Symptoms of a Failing OEM Oxygen Sensor

• Check Engine Light: Triggers P0134, P0135, P0141, or P2A00 from heater or response faults.
• Erratic Fuel Trims: Sluggish switching causes unstable fuel trims and hesitation.
• Poor Economy: Rich running fouls plugs and causes failed emissions tests.

The Direct-Fit Dual-Sensor Solution

Replacing both upstream (234-9064) and downstream (234-4352) sensors as a matched set restores balanced closed-loop feedback on your RD6/RD7 CR-V. Laser-welded stainless housings and zirconia ceramic elements resist exhaust condensation and thermal shock. Factory-length shielded harnesses with OEM weatherpack plugs connect directly to the K24A1 2.4L harness without splicing. Pre-coated anti-seize threads ensure clean, gall-free installation into the factory exhaust manifold and catalytic bungs.

What's Included

• 1 Upstream Oxygen Sensor (234-9064)
• 1 Downstream Oxygen Sensor (234-4352)

Technical Specifications

Compatibility

• 2005 Honda CR-V 2.4L
• 2006 Honda CR-V 2.4L

Frequently Asked Questions & Fitment Warnings

Does this fit the RD6/RD7 CR-V?

Yes. This fits the 2005-2006 Honda CR-V with the K24A1 2.4L engine. Excludes 2002-2004 models; confirm engine before ordering.

Will this clear P0135 or P0141 codes?

Yes, when sensors are faulty. Matched 234-9064 and 234-4352 sensors restore ECU feedback once codes clear and wiring is verified.

Is splicing or special prep required for installation?

No splicing is required. Both include OEM connectors; use a 22mm O2 socket and avoid contaminating sensor tips.

The Honda Precision Standard

Built for the K24A1 2.4L platform, this sensor pair maintains crisp throttle response, exact fuel metering, and CEL-free emissions compliance.