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DENSO Oxygen Sensor Upstream for Volkswagen Passat, Fox, Cabriolet, Corrado
DENSO Oxygen Sensor Upstream for Volkswagen Passat, Fox, Cabriolet, Corrado
DENSO Oxygen Sensor Upstream for Volkswagen Passat, Fox, Cabriolet, Corrado
DENSO Oxygen Sensor Upstream for Volkswagen Passat, Fox, Cabriolet, Corrado

DENSO Oxygen Sensor Upstream for Volkswagen Passat, Fox, Cabriolet, Corrado

DENSO
Availability:
Out of stock
SKU 234-3023
Sold out
$84.95 - $84.95
$84.95
$84.95 - $84.95
$84.95
CALIFORNIA WARNING

Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information see www.P65Warnings.ca.gov/motor-vehicle-parts.

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This Denso upstream oxygen sensor is designed for various Volkswagen models from the early 1990s, including Passat, Fox, Cabriolet, and Corrado with 1.8L/2.0L engines. It helps the ECU maintain the correct air-fuel mixture for optimal performance and lower emissions. The heated sensor ensures reliable operation and a typical service life of 100,000 miles.

Key Features & Benefits

  • Heated Sensor: Quick light-off for accurate readings from startup.
  • Threaded Mounting: Standard thread for easy replacement.
  • Direct Fit: Replaces OEM 037906265B and Denso 2343023.

Vehicle Fitment

Make Model Years Engine
Volkswagen Passat 1991–1993 2.0L4
Volkswagen Fox 1991–1993 1.8L4
Volkswagen Cabriolet 1990–1993 1.8L4
Volkswagen Corrado 1990 1.8L4

Technical Specifications

Part Number 2343023
OEM Cross 037906265B

Installation Notes

Standard replacement with easy screw-in installation.

About DENSO

DENSO is a leading global automotive supplier known for high-quality OEM and aftermarket parts.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 4 applications
Volkswagen
Make Model Engine Years
No vehicles listed for this group.
B3 Passat
Make Model Engine Years
Volkswagen Passat 2.0L4 1991–1993
Fox
Make Model Engine Years
Volkswagen Fox 1.8L4 1991–1993
MK1 Cabriolet
Make Model Engine Years
Volkswagen Cabriolet 1.8L4 1990–1993
Corrado
Make Model Engine Years
Volkswagen Corrado 1.8L4 1990–1990
Fits 4 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The DENSO 234-3023 oxygen sensor measures the oxygen in the exhaust so the engine computer can keep the fuel mixture correct. Sensors before the catalytic converter control the mixture; sensors after it monitor the converter's efficiency.

Frequently asked questions

What does an oxygen sensor do?

It reports how rich or lean the exhaust is, and the engine computer adjusts fuel delivery in response. A faulty sensor can make the engine run too rich or too lean.

What are the signs of a failing oxygen sensor?

A check-engine light with oxygen-sensor or fuel-trim codes, poorer fuel economy, rough idle, or a failed emissions test. Exhaust leaks near the sensor can cause similar codes, so check for those too.

How do I know which sensor I need?

Sensors are specific to their position: upstream (before the catalytic converter) or downstream (after it), and on V engines, bank 1 or bank 2. The fault code usually identifies the position; check the product details for the position this sensor fits.

Can I replace an oxygen sensor myself?

Usually, yes, using an oxygen-sensor socket. Many new sensors come with anti-seize already on the threads; if not, use a sensor-safe compound only on the threads, and keep it off the sensor tip.

How do I make sure this oxygen sensor fits my car?

Compare the part numbers listed on this page with the number on your old part or in your vehicle's parts catalog, and check the fitment information. If you are unsure, contact us with your VIN before ordering.

Euromotiv is an independent retailer of OEM, Genuine, and aftermarket automotive parts. We are not affiliated with, endorsed by, or authorized by Audi AG, Volkswagen AG, BMW AG, Mercedes-Benz Group AG, Dr. Ing. h.c. F. Porsche AG, MINI, or any other vehicle manufacturer. All trademarks, logos, and brand names are the property of their respective owners and are used solely for identification and compatibility purposes.