BDFHYK Downstream O2 Sensor for 1999-2000 Honda Civic & Acura EL 1.6L, 1997-2001 Honda CR-V 2.0L, Replaces 234-4098, 1PC

This BDFHYK 234-4098 downstream O2 sensor is an OE-style aftermarket replacement for 1999-2000 Honda Civic 1.6L, 1997-2001 Honda CR-V 2.0L and 1999-2000 Acura EL 1.6L applications. Before ordering, confirm Year / Make / Model / Engine, the downstream exhaust location, connector style, lead length and the original sensor number. A Check Engine Light or stored diagnostic code alone does not confirm that the downstream oxygen sensor has failed.

234-4098 Downstream O2 Sensor Fitment for Honda and Acura

234-4098 O2 Sensor Interchange References

Replacement references include 234-4098, 36532-P2P-A01, 36532-P3F-A01 and 36532-P3F-A11. Match the reference together with the connector and downstream location.

234-4098 Downstream Sensor Position Check

This SKU is listed for downstream use. Do not assign a universal Bank 1 Sensor 2 or Bank 2 Sensor 2 location without service information for the exact vehicle and engine.

234-4098 O2 Sensor Diagnosis Before Replacement

Inspect wiring, connector condition, heater power and ground, the related fuse, exhaust leaks, fuel-control faults, misfires and catalyst operation before replacement. P0420 or P0430 does not automatically prove the downstream sensor is defective.

234-4098 O2 Sensor Installation Notes

• Allow the exhaust system to cool before service.
• Use an O2 sensor socket or suitable wrench.
• Compare the connector, lead length and original number with the removed sensor.
• Inspect bung threads and start the sensor by hand.
• Use anti-seize only when permitted by the sensor instructions.
• Tighten to the applicable vehicle service specification and route the harness away from heat and moving parts.

234-4098 O2 Sensor Package Contents

• 1 × BDFHYK oxygen sensor

Important: This is an OE-style aftermarket replacement, not a factory-branded part.