how to replace oxygen sensor in Honda Accord 10th Generation (2018-2022)

Honda Accord 8th Generation (2008-2012)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

451 words

Problem Statement

Step-by-step guide to replace the oxygen sensor in Honda Accord 10th Generation (2018-2022). Learn symptoms, diagnostic steps, and tools required.

Affected Component

Exhaust System

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before touching any components in the exhaust system.

Symptoms

•Check engine light illuminated
•Rough idle or stalling
•Decreased fuel economy
•Increased emissions
•Failed emissions test

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm oxygen sensor-related issues.
2
Inspect the wiring and connectors for damage or corrosion.
3
Measure the voltage output of the oxygen sensor with a multimeter.
4
Check for exhaust leaks upstream of the sensor that could affect readings.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Socket set
•Torque wrench
•Oxygen sensor socket
•Multimeter
•Safety goggles
•Gloves

Parts Required

•New oxygen sensor (upstream and/or downstream as needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Solution

1. Preparation

Tools Required: OBD-II scanner, socket set, torque wrench, oxygen sensor socket, multimeter, safety goggles, gloves.
Disconnect the battery to prevent electrical shorts.
Allow the engine to cool completely.

2. Locate the Oxygen Sensor

Identify the oxygen sensor location: The 10th generation Honda Accord typically has two sensors, one upstream (pre-catalytic converter) and one downstream (post-catalytic converter).
Raise the vehicle using a jack and secure it with jack stands if necessary.

3. Remove the Old Oxygen Sensor

For Upstream Sensor:
1. Disconnect the electrical connector by pressing the tab and pulling it apart.
2. Use an oxygen sensor socket to unscrew the sensor from the exhaust manifold.
For Downstream Sensor:
1. Disconnect the electrical connector similarly.
2. Unscrew the sensor using the oxygen sensor socket.

4. Install the New Oxygen Sensor

Apply anti-seize compound (if not pre-applied) to the threads of the new oxygen sensor.
Screw the new sensor into place and tighten it to the manufacturer's specification (typically about 30 lb-ft).
Reconnect the electrical connector securely to the new sensor.

5. Reconnect Battery and Test

Reconnect the battery terminals.
Start the engine and let it warm up to operating temperature.