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Denso 234-4224 Oxygen Sensor - Downstream
| Brand | Denso 234-4224 |
|---|---|
| Position | Downstream |
| Connector Gender | Female |
| Mounting Type | Threaded |
| Sensor Type | Heated |
| Thread Diameter | 0.708 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Wiring Harness Length | 8.66 |
| Product line | OE Style |
| Fits | Honda · 3 vehicles |
OE style. Precision-built for exact replacement and a first-time fit.
Heated sensor. Helps support faster operation and consistent performance.
Threaded mounting. Installs with a secure, direct-fit connection.
Cross-references ACDelco 213-2890, Delphi ES20128 and Honda 36532PZAA01 for the same application. See all 7.
Denso 234-4224 Oxygen Sensor for Honda Civic
Denso 234-4224 is a heated, specific-fit oxygen sensor built for direct replacement in select Honda Civic applications. It is engineered to match OE-style fitment and signal performance for the downstream location after the primary catalyst on 2003-2005 Honda Civic models, excluding California emissions applications.
Key Features
- Heated oxygen sensor for downstream exhaust monitoring
- Specific-fit design for direct replacement
- 4-wire configuration with female connector
- Threaded mounting with 0.708 in. thread diameter
- 8.66 in. wiring harness length for application-specific routing
- OE Style Denso construction for exact replacement fit
OE Style Design and Application
Denso’s OE Style line is built to the same dimensional and functional expectations used in original equipment service parts. The 234-4224 oxygen sensor is precision built for first-time fit and is intended for the downstream position on 2003-2005 Honda Civic models, located after the primary catalyst. This part number, 234-4224, is also a direct reference point for shoppers comparing Honda Civic oxygen sensor replacements by OE-style specification.
This part cross-references Honda (e.g., 36532PZAA01) for the same application.
What This Oxygen Sensor Helps Address
- Check engine light concerns related to downstream oxygen sensor performance
- Incorrect exhaust gas feedback readings from a worn sensor
- Reduced fuel control accuracy caused by aging sensor response
- Emissions monitoring faults after the primary catalyst
- Driveability issues tied to degraded heated sensor operation
Installation Notes and Tips
Confirm the vehicle is a 2003-2005 Honda Civic with downstream placement after the primary catalyst and exclude California emissions applications before ordering. Match the 4-wire female connector, threaded mounting style, and harness length to the original sensor layout. For best results, inspect the exhaust threads and connector condition before installation, and verify the replacement sensor is routed away from heat and abrasion.
Quality Assurance
Denso manufactures and tests this oxygen sensor to OE standards, with precision-built components intended to deliver accurate replacement fit and consistent operation. The design includes an aluminum oxide trap layer that helps protect the ceramic element from silicone and lead contamination, supporting long service life and stable engine management performance.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Honda | Civic | Downstream | Loc. After Primary Catalyst; Exc. Calif.; OE Style |
| 2004 | Honda | Civic | Downstream | Loc. After Primary Catalyst; Exc. Calif.; OE Style |
| 2003 | Honda | Civic | Downstream | Loc. After Primary Catalyst; Exc. Calif.; OE Style |
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