Engine-Codes.com
Engine-Codes – Ford – P1305 Ford

P1305 Ford Code - EGR Calibration Low

Quick Answer

The P1305 Ford diagnostic trouble code (DTC) indicates an issue with the Exhaust Gas Recirculation (EGR) system calibration being too low. Common causes include Faulty EGR Valve: The EGR valve may be stuck open or closed, causing improper calibration, EGR Sensor Malfunction: A malfunctioning EGR sensor can provide incorrect data to the ECM, leading to calibration issues, Clogged EGR Passage: Carbon buildup or debris in the EGR passage can restrict flow and affect calibration. 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
P1305 Ford indicates EGR Calibration Low.
Common causes
Common causes include Faulty EGR Valve: The EGR valve may be stuck open or closed, causing improper calibration, EGR Sensor Malfunction: A malfunctioning EGR sensor can provide incorrect data to the ECM, leading to calibration issues, Clogged EGR Passage: Carbon buildup or debris in the EGR passage can restrict flow and affect calibration.
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 09, 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 P1305 Ford Description

The P1305 Ford diagnostic trouble code (DTC) indicates an issue with the Exhaust Gas Recirculation (EGR) system calibration being too low. The EGR system is responsible for recirculating a portion of the exhaust gases back into the engine intake to reduce emissions and improve fuel efficiency. When the EGR calibration is low, it means that the EGR system is not operating within the specified parameters set by the vehicle's engine control module (ECM).

OBDII Code P1305 Ford - EGR Calibration Low
P1305 Ford Code - EGR Calibration Low

Common Causes of P1305 Ford

  1. Faulty EGR Valve: The EGR valve may be stuck open or closed, causing improper calibration.
  2. EGR Sensor Malfunction: A malfunctioning EGR sensor can provide incorrect data to the ECM, leading to calibration issues.
  3. Clogged EGR Passage: Carbon buildup or debris in the EGR passage can restrict flow and affect calibration.
  4. Wiring Issues: Damaged or corroded wiring connections to the EGR system components can disrupt communication with the ECM.
  5. ECM Malfunction: In rare cases, a malfunction in the engine control module can cause the EGR calibration to be too low.

Symptoms of P1305 Ford

  1. Check Engine Light: The most common symptom associated with the P1305 code is the illumination of the Check Engine Light on the dashboard.
  2. Rough Idle: The engine may experience a rough idle or misfire at idle, which can lead to a noticeable vibration in the vehicle.
  3. Reduced Engine Performance: The vehicle may exhibit a lack of power or decreased acceleration due to improper EGR system calibration.
  4. Increased Emissions: A failing EGR system can result in increased emissions output, which may cause the vehicle to fail emissions testing.
  5. Engine Stalling: In severe cases, the engine may stall or have difficulty starting due to the EGR calibration issue.

How to Fix P1305 Ford

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the specific DTC and pinpoint the exact cause of the low EGR calibration.
  2. Inspect EGR Components: Check the EGR valve, sensor, and related components for any signs of damage, wear, or blockages.
  3. Clean or Replace EGR Valve: Clean the EGR valve to remove any carbon deposits, or replace it if it is faulty.
  4. Test EGR Sensor: Test the EGR sensor for proper operation and replace it if necessary.
  5. Clear DTC and Test Drive: Clear the DTC from the ECM memory, then test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1305 Ford

The cost of repairing a P1305 Ford code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the cost of parts for an EGR system repair can range from $100 to $500, with labor costs adding an additional $100 to $300. Overall, the total repair cost can range from $200 to $800. Keep in mind that these are rough estimates, and actual costs may be higher or lower based on the factors mentioned earlier. It's recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate for your specific vehicle.

Need more information about the P1305 Ford code?

Need more information on how to fix the P1305 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1305 Ford 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 P1305 Ford Code

1. What are the common symptoms of OBDII code P1305 Ford (EGR Calibration Low)?

- Common symptoms include rough idling, decreased engine performance, and potential stalling.

2. What are the possible causes of OBDII code P1305 Ford?

- The code P1305 Ford typically indicates issues with the Exhaust Gas Recirculation (EGR) valve, such as carbon buildup, a faulty EGR valve, or a problem with the EGR system calibration.

3. How can I diagnose the cause of OBDII code P1305 Ford?

- Use a scan tool to retrieve the code and then inspect the EGR valve for carbon buildup, check for any vacuum leaks, and ensure the EGR system is functioning properly.

4. Can I drive my vehicle with OBDII code P1305 Ford?

- It is not recommended to drive your vehicle with code P1305 Ford as it can lead to further engine damage and potential safety issues.

5. How can I repair OBDII code P1305 Ford?

- Repair options may include cleaning or replacing the EGR valve, checking and repairing any vacuum leaks, and resetting the EGR system calibration.

6. Can a DIY enthusiast fix OBDII code P1305 Ford?

- Depending on your mechanical skills and access to tools, a DIY enthusiast may be able to address code P1305 Ford by following repair guides and using appropriate diagnostic equipment.

7. What are the long-term effects of ignoring OBDII code P1305 Ford?

- Ignoring code P1305 Ford can lead to decreased fuel efficiency, engine misfires, and potential damage to other engine components over time.

8. Are there any preventative maintenance tips to avoid OBDII code P1305 Ford?

- Regularly inspect and clean the EGR valve, follow recommended maintenance schedules, and use high-quality fuel to help prevent issues that trigger code P1305 Ford.

9. How much does it typically cost to fix OBDII code P1305 Ford?

- The cost to fix code P1305 Ford can vary depending on the root cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

10. Can a faulty EGR valve cause other OBDII codes to appear in addition to P1305 Ford?

- Yes, a faulty EGR valve can trigger other OBDII codes related to emissions control, engine performance, or exhaust system malfunctions.

Discuss the causes and fixes for P1305 Ford OBDII Code

Submit a New Comment

  • 2013 F-150 5.0L flex fuel, got a wrench on the dash, truck went into Limp mode, turned truck off then back on. started back up fine with full power, got home, plugged in scan tool, showed P1035 code. notice fuel consumption is worse than before. any help would be appreciated.

    Reply to Comment

  • ford ka 1.2 petrol 2013 eml light on but obd machine saying eml light is off when i scan for codes its saying egr calibration low but it dont have an egr on it any ideas guys thank you.

    Reply to Comment

    • Hi there, the P1305 code – indicating 'EGR Calibration Low' – is puzzling on a Ford Ka 1.2 petrol since this model isn’t equipped with an actual EGR valve. This error is likely not due to a malfunctioning EGR component but could be caused by:

      • OBD Scanner Compatibility: Sometimes, if the scan tool isn’t fully compatible with Ford’s specific communication protocols, it can misinterpret the data and show false codes.
      • ECU Calibration/Software: Even though the engine doesn’t have an EGR, the ECU might be expecting a certain calibration value. A software glitch or outdated calibration can trigger the code.
      • Wiring/Connectors: Although there isn’t an EGR valve, there might still be circuitry or connectors in the ECU related to the EGR system. It’s worth checking for any loose or damaged wiring.

      If your vehicle is running normally, this code might be a benign error. I’d suggest verifying your OBD tool’s compatibility and possibly checking with a Ford dealer for any ECU updates or technical bulletins addressing this issue. Hope this helps!

      Reply to Comment