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Engine-Codes – Generic – P1164

P1164 Code - Air/Fuel Ratio Sensor 1 Range/Performance Problem

Quick Answer

The diagnostic trouble code P1164 indicates an issue with the Air/Fuel Ratio Sensor 1 Range/Performance on the vehicle. Common causes include Faulty Air/Fuel Ratio Sensor, Wiring or connector issues, Vacuum leaks in the intake system. 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
P1164 indicates Air/Fuel Ratio Sensor 1 Range/Performance Problem.
Common causes
Common causes include Faulty Air/Fuel Ratio Sensor, Wiring or connector issues, Vacuum leaks in the intake system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P1164 Description

The diagnostic trouble code P1164 indicates an issue with the Air/Fuel Ratio Sensor 1 Range/Performance on the vehicle. This sensor plays a crucial role in monitoring the air to fuel ratio in the engine, ensuring optimal combustion and efficient performance. When this sensor detects a problem with the air to fuel ratio, it can lead to a range of performance issues for the vehicle.

OBDII Code P1164 - Air/Fuel Ratio Sensor 1 Range/Performance Problem
P1164 Code - Air/Fuel Ratio Sensor 1 Range/Performance Problem

Common Causes of P1164

  1. Faulty Air/Fuel Ratio Sensor
  2. Wiring or connector issues
  3. Vacuum leaks in the intake system
  4. Exhaust leaks before the sensor
  5. Issues with the ECM

Symptoms of P1164

  1. Decreased fuel economy
  2. Engine performance issues
  3. Rough idling or stalling
  4. Increased emissions
  5. Check Engine Light illuminated

How to Fix P1164

  1. Diagnose the issue by scanning the vehicle's ECM for trouble codes and checking the sensor's readings with a scan tool.
  2. Inspect the sensor, wiring, and connectors for any signs of damage or corrosion.
  3. Test the sensor's operation using a multimeter or oscilloscope to verify its accuracy.
  4. Replace the Air/Fuel Ratio Sensor 1 if it is found to be faulty.
  5. Clear the trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1164

The cost of repairing a P1164 code can vary depending on the make and model of the vehicle, the location of the repair shop, and the cost of parts. Typically, the cost of replacing an Air/Fuel Ratio Sensor 1 ranges from $150 to $400, including parts and labor. Additional costs may apply if other components need to be replaced or if further diagnosis is required. It is recommended to consult with a professional mechanic for a more accurate cost estimate based on your specific vehicle.

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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Code P1164 Information for Specific Makes

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.

Frequently Asked Questions about P1164 Code

No Frequently Asked Questions about P1164 Code found.

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  • Another possible cause is that the air intake boot (hose) is broken/split. Before replacing the sensor, check the air intake hose to see if it is broken and make sure to replace it in that case. Otherwise, replacing the sensor may not help.

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  • Thank you for the information!!!

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