/live/media/NP/NP_2345023_Fro.jpg)
Denso 234-5023 Air / Fuel Ratio Sensor - Upstream or Upstream Right
| Brand | Denso 234-5023 |
|---|---|
| Position | Upstream and Upstream Right |
| Wiring Harness Length | 57.40 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Grade Type | Regular |
| Connector Gender | Male |
| Thread Diameter | 0.711 |
| Product line | OE Style |
| Fits | Porsche · 33 vehicles |
OE style. Precision-built for exact replacement and a first-time fit.
Heated sensor. Delivers fast, reliable air/fuel ratio monitoring.
Specific fit. Made for a direct, exact replacement application.
Cross-references Bosch 17154, Bosch 17156 and Bosch 17222 for the same application. See all 17.
Denso OE Style Air/Fuel Ratio Sensor
Denso 234-5023 is a specific-fit heated air/fuel ratio sensor built to OE-style standards for precise replacement and consistent signal performance. It is engineered for direct fitment on select Porsche applications, including Porsche Panamera, Cayenne, 911, Boxster, and Cayman models.
The OE Style line focuses on exact replacement fitment and factory-style integration, helping simplify the repair process on vehicles that require a direct-match sensor. Denso 234-5023 is a 5-wire, male-connector sensor with a 57.40-inch wiring harness and a 0.711 thread diameter.
Key Features
- Heated air/fuel ratio sensor for emissions and fuel-control feedback
- Specific fit design for direct replacement on listed Porsche applications
- 5-wire configuration with male connector
- 57.40-inch wiring harness length
- 0.711 thread diameter for OE-style installation
- Regular grade construction for standard replacement service
Detailed Fitment and Application
This Denso air/fuel ratio sensor, part number 234-5023, is listed for 2014-2016 Porsche Panamera, upstream right; 2015 Porsche Panamera, upstream right, cylinder 1, 2, 3; 2008-2014 Porsche Cayenne, upstream; 2009-2012 Porsche 911, upstream; 2009-2012 Porsche Boxster, upstream; and 2009-2012 Porsche Cayman, upstream. It is a direct replacement choice for owners and technicians servicing Porsche upstream sensor locations where OE-style fit and factory-style wiring length matter.
This part cross-references Bosch (e.g., 17154, 17156) for the same application.
What It Helps Address
- Faulty upstream air/fuel ratio sensor readings
- Check engine lights related to mixture or sensor performance
- Rough idle or drivability issues tied to incorrect fuel trim feedback
- Emissions test failures caused by sensor degradation
- Delayed or inaccurate air-fuel mixture correction
Installation Notes and Tips
Verify the connector style, wire count, thread diameter, and sensor position before installation. This sensor is listed as a specific fit, so matching the exact Porsche model year and upstream location is important. Inspect the harness routing and connector condition during replacement to help ensure a clean OE-style installation.
Quality Assurance
Denso manufactures and tests this OE Style sensor to strict original-equipment standards, with precision-built dimensions intended to support exact replacement and first-time fit. The part number 234-5023 reflects Denso’s direct-fit approach for select Porsche applications.
| Year | Make | Model | Submodel | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2016 | Porsche | Panamera | — | — | Upstream Right | OE Style |
| 2016 | Porsche | Panamera | — | GAS | Upstream Right | OE Style |
| 2015 | Porsche | Panamera | — | — | Upstream Right | OE Style |
| 2015 | Porsche | Panamera | — | GAS | Upstream Right | Cylinder 1, 2, 3; OE Style |
| 2014 | Porsche | Cayenne | — | — | Upstream | OE Style |
| 2014 | Porsche | Panamera | — | — | Upstream Right | OE Style |
| 2013 | Porsche | Cayenne | — | — | Upstream | OE Style |
| 2012 | Porsche | 911 | Targa 4S | — | Upstream | OE Style |
| 2012 | Porsche | 911 | Carrera GTS | — | Upstream | OE Style |
| 2012 | Porsche | 911 | Carrera 4S | — | Upstream | OE Style |
| 2012 | Porsche | 911 | Carrera 4 GTS | — | Upstream | OE Style |
| 2012 | Porsche | 911 | — | — | Upstream | OE Style |
| 2012 | Porsche | Boxster | — | — | Upstream | OE Style |
| 2012 | Porsche | Cayenne | — | — | Upstream | OE Style |
| 2012 | Porsche | Cayman | — | — | Upstream | OE Style |
| 2011 | Porsche | 911 | — | — | Upstream | OE Style |
| 2011 | Porsche | 911 | GT3 | — | Upstream | OE Style |
| 2011 | Porsche | 911 | GT3 RS | — | Upstream | OE Style |
| 2011 | Porsche | 911 | Carrera 4S | — | Upstream | OE Style |
| 2011 | Porsche | Boxster | — | — | Upstream | OE Style |
| 2011 | Porsche | Cayenne | — | — | Upstream | OE Style |
| 2011 | Porsche | Cayman | — | — | Upstream | OE Style |
| 2010 | Porsche | 911 | Carrera 4S | — | Upstream | OE Style |
| 2010 | Porsche | 911 | GT3 | — | Upstream | OE Style |
| 2010 | Porsche | 911 | — | — | Upstream | OE Style |
| 2010 | Porsche | Boxster | — | — | Upstream | OE Style |
| 2010 | Porsche | Cayenne | — | — | Upstream | OE Style |
| 2010 | Porsche | Cayman | — | — | Upstream | OE Style |
| 2009 | Porsche | 911 | — | — | Upstream | OE Style |
| 2009 | Porsche | Boxster | — | — | Upstream | OE Style |
| 2009 | Porsche | Cayenne | — | — | Upstream | OE Style |
| 2009 | Porsche | Cayman | — | — | Upstream | OE Style |
| 2008 | Porsche | Cayenne | — | — | Upstream | OE Style |
| No rows match your filter. | ||||||