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P1304 Ford Code - EGR Calibration High

Quick Answer

The P1304 Ford OBD-II diagnostic trouble code indicates an issue with the Exhaust Gas Recirculation (EGR) system calibration being too high. Common causes include Faulty EGR valve, Clogged EGR passages, Malfunctioning EGR sensor. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means
P1304 Ford indicates EGR Calibration High.
Common causes
Common causes include Faulty EGR valve, Clogged EGR passages, Malfunctioning EGR sensor.
Severity
Moderate - service should be scheduled soon.
Can I drive?
The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1304 Ford Description

The P1304 Ford OBD-II diagnostic trouble code indicates an issue with the Exhaust Gas Recirculation (EGR) system calibration being too high. The EGR system is responsible for recirculating a portion of exhaust gases back into the engine cylinders to reduce combustion temperatures and lower harmful emissions. When the EGR calibration is too high, it means that the amount of exhaust gas being recirculated is outside of the expected range, which can lead to a variety of performance issues.

OBDII Code P1304 Ford - EGR Calibration High
P1304 Ford Code - EGR Calibration High

Common Causes of P1304 Ford

  1. Faulty EGR valve
  2. Clogged EGR passages
  3. Malfunctioning EGR sensor
  4. Issues with the engine control module (ECM)
  5. Vacuum leaks in the EGR system

Symptoms of P1304 Ford

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Engine knocking or pinging sounds
  4. Check Engine Light illuminated
  5. Reduced engine performance

How to Fix P1304 Ford

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and inspecting the EGR system components for any visible damage or clogs.
  2. Test the EGR valve, sensor, and passages for proper operation and clean or replace any components that are found to be faulty.
  3. Clear the trouble code from the vehicle's ECM and reset the system to see if the issue reoccurs.
  4. Test drive the vehicle to ensure that the symptoms associated with the P1304 code have been resolved and that the EGR system is functioning correctly.
  5. If the problem persists, consider seeking professional help from a certified mechanic to further diagnose and repair the issue.

Cost to Fix P1304 Ford

The typical repair costs for addressing a P1304 Ford code can vary depending on the specific cause of the issue. In general, replacing a faulty EGR valve can cost between $150 to $300, while cleaning clogged EGR passages may range from $100 to $200. Labor costs can add an additional $80 to $150 per hour, and the total repair bill can amount to $300 to $600 or more. It's important to consider that these estimates are just rough approximations, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. It's recommended to consult with a trusted auto repair shop for a more accurate cost estimate.

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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 P1304 Ford Code

1. What are the common symptoms of OBDII code P1304 Ford (EGR Calibration High)?

The common symptoms of code P1304 Ford include rough idling, engine hesitation, decreased fuel efficiency, and potential stalling.

2. What are the possible causes of OBDII code P1304 Ford (EGR Calibration High)?

Possible causes of code P1304 Ford include a faulty EGR valve, issues with the EGR sensor, carbon buildup in the EGR system, or a malfunctioning PCM.

3. How can I diagnose OBDII code P1304 Ford (EGR Calibration High)?

Diagnosing code P1304 Ford typically involves using an OBDII scanner to retrieve the code, inspecting the EGR system for leaks or carbon buildup, and testing the EGR valve and sensor for proper functionality.

4. Can I continue driving with OBDII code P1304 Ford (EGR Calibration High) present?

It is not recommended to continue driving with code P1304 Ford present, as it can lead to engine performance issues and potential damage if left unresolved.

5. How can I repair OBDII code P1304 Ford (EGR Calibration High)?

Repairing code P1304 Ford may involve cleaning or replacing the EGR valve, replacing the EGR sensor, cleaning out carbon deposits in the EGR system, or reprogramming the PCM.

6. Is it possible to reset OBDII code P1304 Ford (EGR Calibration High) without repairs?

While clearing the code with an OBDII scanner may temporarily reset the check engine light, the underlying issue causing code P1304 Ford will likely need to be addressed to prevent the code from reoccurring.

7. How much can I expect to pay for repairs related to OBDII code P1304 Ford (EGR Calibration High)?

The cost of repairs for code P1304 Ford can vary depending on the specific issue, but it may range from $100 to $500 or more, including parts and labor.

8. Can a DIY enthusiast fix OBDII code P1304 Ford (EGR Calibration High) at home?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to address code P1304 Ford at home by following repair guides or tutorials specific to their vehicle make and model.

9. Will OBDII code P1304 Ford (EGR Calibration High) cause my vehicle to fail emissions testing?

Yes, code P1304 Ford can cause your vehicle to fail emissions testing, as it is related to the EGR system, which plays a crucial role in reducing harmful emissions.

10. How soon should I address OBDII code P1304 Ford (EGR Calibration High) after it appears?

It is recommended to address code P1304 Ford as soon as possible after it appears to prevent further engine damage and maintain optimal vehicle performance.

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