AutoCodes – Acura – P1162 Acura

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

Quick Answer

The Air/Fuel Ratio (A/F) sensor 1 is installed in the exhaust system and detects oxygen content in the exhaust gas. Common causes include Faulty Air/Fuel Ratio Sensor 1, Air/Fuel Ratio Sensor 1 harness is open or shorted, Air/Fuel Ratio Sensor 1 circuit poor electrical connection. 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 Acura indicates Air/Fuel Ratio Sensor 1 Circuit Malfunction.
Common causes: Common causes include Faulty Air/Fuel Ratio Sensor 1, Air/Fuel Ratio Sensor 1 harness is open or shorted, Air/Fuel Ratio Sensor 1 circuit poor electrical connection.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 5,166

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 03, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P1162 Acura Description

The Air/Fuel Ratio (A/F) sensor 1 is installed in the exhaust system and detects oxygen content in the exhaust gas. The A/F sensor transmits output voltage to the Engine Control Module (ECM). A heater for the sensor element is embedded in the A/F sensor (sensor 1). It is activated and heats the sensor to stabilize and speed the detection of oxygen content by controlling current flowing through the heater. An increase in the current levels off as the applied voltage to the element electrode reaches a certain range because the amount of oxygen which is led through the diffusion layer is limited. The current amperage is proportional to oxygen content in the exhaust gas, so the air/fuel ratio is detected by the measurement of the current amperage. The ECM compares a set target air/fuel ratio with the detected air/fuel ratio and controls the fuel injection timing.
If the A/F sensor (sensor 1) voltage is low, the air/fuel ratio is lean, and the ECM uses A/F feedback control to issue a Rich command. If the A/F sensor (sensor 1) voltage is high, the air/fuel ratio is rich, and the ECM uses A/F feedback control to issue a Lean command.

OBDII Code P1162 Acura - Air/Fuel Ratio Sensor 1 Circuit Malfunction - AutoCodes.com — P1162 Acura Code - Air/Fuel Ratio Sensor 1 Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P1162 Acura?

Faulty Air/Fuel Ratio Sensor 1
Air/Fuel Ratio Sensor 1 harness is open or shorted
Air/Fuel Ratio Sensor 1 circuit poor electrical connection

How to Fix the DTC P1162 Acura?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1162 Acura code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P1162 Acura code?

Need more information on how to fix the P1162 Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1162 Acura code diagnosed by a professional: Find a repair shop in your area

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 P1162 Acura Code

1. What are the common symptoms of OBDII code P1162 in an Acura related to the Air/Fuel Ratio Sensor 1 circuit malfunction?

- Common symptoms include poor fuel economy, rough idling, hesitation during acceleration, and an illuminated check engine light.

2. What are the possible causes of the P1162 code in an Acura?

- The P1162 code in an Acura is typically caused by a faulty Air/Fuel Ratio Sensor 1, wiring issues in the sensor circuit, or problems with the engine's electronic control module.

3. How can I diagnose the cause of the P1162 code in my Acura?

- Diagnosis involves inspecting the Air/Fuel Ratio Sensor 1 and its wiring for damage or corrosion, checking the sensor's resistance, and using a scan tool to monitor sensor data while the engine is running.

4. Can I drive my Acura with the P1162 code present?

- It is generally not recommended to drive your Acura with the P1162 code present, as it can lead to poor engine performance and potential damage if left unresolved.

5. How do I repair the Air/Fuel Ratio Sensor 1 circuit malfunction in my Acura?

- Repairing the issue involves replacing the faulty Air/Fuel Ratio Sensor 1, repairing any damaged wiring or connections, and clearing the trouble codes with a scan tool.

6. Are there any DIY tips for fixing the P1162 code in my Acura?

- While replacing the Air/Fuel Ratio Sensor 1 can be done by some DIY enthusiasts, diagnosing and repairing wiring issues may require professional tools and expertise.

7. How much does it cost to fix the P1162 code in an Acura at a repair shop?

- The cost of fixing the P1162 code in an Acura can vary depending on the root cause of the issue, but it typically ranges from $200 to $500 at a repair shop.

8. Can a P1162 code be triggered by something other than a faulty Air/Fuel Ratio Sensor 1?

- Yes, in some cases, the P1162 code can also be triggered by issues such as vacuum leaks, exhaust leaks, or problems with the fuel system.

9. Will resetting the check engine light make the P1162 code go away temporarily?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue causing the P1162 code is not fixed, the code is likely to reappear.

10. How often should I replace the Air/Fuel Ratio Sensor 1 in my Acura to prevent the P1162 code from reoccurring?

- It is recommended to follow the manufacturer's guidelines for sensor replacement intervals, typically every 60,000 to 100,000 miles, to prevent the P1162 code from reoccurring.