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DENSO Oxygen Sensor 2343102 – Upstream (Audi A4 1996-1997)
DENSO Oxygen Sensor 2343102 – Upstream (Audi A4 1996-1997)
DENSO Oxygen Sensor 2343102 – Upstream (Audi A4 1996-1997)
DENSO Oxygen Sensor 2343102 – Upstream (Audi A4 1996-1997)

DENSO Oxygen Sensor 2343102 – Upstream (Audi A4 1996-1997)

DENSO
Availability:
Out of stock
SKU 234-3102
Sold out
$91.95 - $91.95
$91.95
$91.95 - $91.95
$91.95
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 upstream oxygen sensor is designed for 1996-1997 Audi A4 models with the 2.8L V6 engine. It provides accurate exhaust oxygen measurements to optimize air-fuel mixture, improving fuel economy and reducing emissions. Heated sensor ensures quick response.

Key Features & Benefits

  • Heated sensor: Fast light-off for accurate readings from cold start.
  • Threaded mounting: 0.708 inch thread diameter for secure installation.
  • Male connector: Easy plug-and-play connection.
  • Upstream location: Pre-cat monitoring for precise fuel control.

Vehicle Fitment

Make Model Years Engine
Audi A4 Quattro 1996–1997 2.8V6
Audi A4 1996–1997 2.8V6

Technical Specifications

Part Number 078906265D
DENSO Part Number 2343102
Sensor Type Heated
Thread Diameter 0.708 in
Mounting Threaded
Connector Gender Male

About DENSO

DENSO is a trusted OE supplier known for high-quality sensors and engine management components.

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 2 applications
B5 A4
Make Model Engine Years
Audi A4 Quattro 2.8V6 1996–1997
Audi A4 2.8V6 1996–1997
Fits 2 vehicle applications Check vehicle fitment before ordering View fitment

About this Oxygen Sensor

The DENSO 234-3102 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.