Engine-CodesHonda – P1162 Honda

P1162 Honda Code - Air/Fuel Ratio Sensor 1 Circuit Malfunction

Quick Answer

The P1162 Honda code indicates a malfunction in the Air/Fuel Ratio Sensor 1 Circuit. Common causes include Faulty Air/Fuel Ratio Sensor 1, Wiring issues or corrosion in the sensor circuit, ECM software or hardware issues. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1162 Honda indicates Air/Fuel Ratio Sensor 1 Circuit Malfunction.
Common causes
Common causes include Faulty Air/Fuel Ratio Sensor 1, Wiring issues or corrosion in the sensor circuit, ECM software or hardware issues.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1162 Honda Description

The P1162 Honda code indicates a malfunction in the Air/Fuel Ratio Sensor 1 Circuit. This sensor is responsible for monitoring the air-fuel mixture in the exhaust system and providing feedback to the engine control module (ECM) to adjust the fuel injection for optimal combustion. When this sensor circuit malfunctions, it can lead to issues with fuel efficiency, engine performance, and emissions output.

OBDII Code P1162 Honda - Air/Fuel Ratio Sensor 1 Circuit Malfunction
P1162 Honda Code - Air/Fuel Ratio Sensor 1 Circuit Malfunction

Common Causes of P1162 Honda

  1. Faulty Air/Fuel Ratio Sensor 1
  2. Wiring issues or corrosion in the sensor circuit
  3. ECM software or hardware issues
  4. Exhaust leaks near the sensor
  5. Contaminated sensor due to oil or coolant leaks

Symptoms of P1162 Honda

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Hesitation or surging during acceleration
  4. Illuminated check engine light
  5. Increased emissions output

How to Fix P1162 Honda

  1. Diagnose the issue by using a scan tool to retrieve the fault code and data from the sensor.
  2. Inspect the wiring and connectors for any damage or corrosion, repairing or replacing as necessary.
  3. Test the Air/Fuel Ratio Sensor 1 using a multimeter to check for proper voltage and resistance values.
  4. Replace the sensor if it is faulty, ensuring it is properly calibrated and installed.
  5. Clear the fault code from the ECM memory and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1162 Honda

The cost of repairing a P1162 Honda code related to the Air/Fuel Ratio Sensor 1 Circuit Malfunction can vary depending on the specific vehicle make and model, as well as the location of the repair shop. On average, the cost of replacing the sensor itself can range from $150 to $300, while factoring in labor costs can bring the total repair bill to around $250 to $500. Keep in mind that diagnosis time and labor rates at auto repair shops can fluctuate, so it's recommended to obtain a detailed quote from a trusted mechanic before proceeding with the repair.

When is the Code Detected?

If the element is not activated or the Engine Control Module (ECM) terminal voltage is a set value or less for at least a set time period when the power is drawn to the A/F sensor (sensor 1) heater, a malfunction is detected and the code is stored.

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Information for Specific Honda Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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