Engine-Codes.com
Engine-Codes – Ford – P1152 Ford

P1152 Ford Code - Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 2

Quick Answer

The P1152 Ford code indicates a lack of activity from the upstream heated oxygen sensor (HO2S) in bank 2 of the engine. Common causes include Faulty upstream HO2S in bank 2, Fuel injector 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
P1152 Ford indicates Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 2.
Common causes
Common causes include Faulty upstream HO2S in bank 2, Fuel injector 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 07, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1152 Ford Description

The P1152 Ford code indicates a lack of activity from the upstream heated oxygen sensor (HO2S) in bank 2 of the engine. The upstream HO2S is responsible for monitoring the oxygen content in the exhaust gases and sending this information to the engine control module (ECM). This data is crucial for the ECM to adjust the air-fuel mixture for optimal combustion efficiency. When the sensor indicates a rich condition in bank 2, it means that there is an excess of fuel in the air-fuel mixture.

OBDII Code P1152 Ford - Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 2
P1152 Ford Code - Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 2

Common Causes of P1152 Ford

  1. Faulty upstream HO2S in bank 2
  2. Fuel injector issues
  3. Vacuum leaks in the intake system
  4. Issues with the engine's combustion process
  5. Faulty ECM or wiring issues

Symptoms of P1152 Ford

  1. Decreased fuel efficiency
  2. Rough idle or stalling
  3. Engine misfires
  4. Check engine light illuminated
  5. Strong fuel odor from the exhaust

How to Fix P1152 Ford

  1. Diagnose the issue by using a scan tool to monitor sensor data and check for any related trouble codes.
  2. Inspect the upstream HO2S in bank 2 for any physical damage or contamination and replace if necessary.
  3. Check the fuel injectors for proper operation and replace any faulty injectors.
  4. Inspect the intake system for vacuum leaks and repair as needed.
  5. Test the engine's combustion process and address any issues with ignition timing or air-fuel mixture.

Cost to Fix P1152 Ford

The cost of repairing a P1152 Ford code can vary depending on the root cause of the issue. In general, replacing a faulty upstream HO2S can cost between $100 and $300, while addressing fuel injector issues can range from $150 to $500. Repairing vacuum leaks and other related issues may add to the total cost. Labor costs at auto repair shops typically range from $80 to $150 per hour, so the total repair bill can add up quickly. It's recommended to consult with a professional mechanic to get an accurate estimate based on the specific circumstances of your vehicle.

Need more information about the P1152 Ford code?

Need more information on how to fix the P1152 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1152 Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford 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.

Frequently Asked Questions about P1152 Ford Code

1. What are the common symptoms of OBDII code P1152 in a Ford vehicle?

Common symptoms include decreased fuel efficiency, rough idling, engine misfires, and a noticeable decrease in overall engine performance.

2. What does the OBDII code P1152 in a Ford indicate?

OBDII code P1152 indicates that the upstream heated oxygen sensor on bank 2 is detecting a rich air-fuel mixture.

3. What are the possible causes of OBDII code P1152 in a Ford?

Possible causes include a faulty upstream heated oxygen sensor, a vacuum leak, a malfunctioning fuel pressure regulator, or issues with the engine's air intake system.

4. How can I diagnose the cause of OBDII code P1152 in my Ford?

Diagnosing the issue typically involves conducting a visual inspection for any obvious signs of damage, checking for vacuum leaks, testing the oxygen sensor's functionality, and using a scan tool to monitor sensor readings.

5. Can I continue driving my Ford with OBDII code P1152 present?

It is not recommended to drive your vehicle with OBDII code P1152 present, as it can lead to further engine damage and increased emissions. It is best to address the issue promptly.

6. How can I repair OBDII code P1152 in my Ford?

Repairing the issue may involve replacing the upstream heated oxygen sensor, fixing any vacuum leaks, replacing the fuel pressure regulator, or addressing any issues with the air intake system.

7. Will resetting the OBDII code P1152 in my Ford make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the vehicle is driven and the system retests.

8. Is OBDII code P1152 in a Ford a serious issue?

While the severity of the issue may vary, it is important to address OBDII code P1152 promptly to prevent potential damage to the engine and ensure optimal vehicle performance.

9. Can a DIY enthusiast fix OBDII code P1152 in a Ford?

Depending on the cause of the issue, some DIY enthusiasts may be able to address OBDII code P1152 by following repair guides and using the necessary tools. However, complex issues may require professional assistance.

10. How long does it typically take to repair OBDII code P1152 in a Ford?

The repair time for OBDII code P1152 can vary depending on the cause of the issue and the specific repairs needed. It is recommended to consult a mechanic for a more accurate estimate.

Discuss the causes and fixes for P1152 Ford OBDII Code

Submit a New Comment

  • Car is running very rich, at idle the car would seem like it has a super radical cam in it, when it only has a very mild one. and then it would be sluggish off the start and espesially at low rpm. then with my foot in it it would be like the engine is running on about four cylinders because the plugs are fouled and then would take off like a rocket. seems sometimes the plugs would clear and go, then would sputter again.

    Reply to Comment

  • Did u get an answer?

    Reply to Comment

  • What model and year is your Ford? Have you done anything to try fix the problem? you could start with spark plugs and air filter.

    Reply to Comment