AutoCodes – Generic – P14A0

P14A0 Code - Exhaust Gas Back Pressure Sensor Open Circuit Or Short Circuit To Earth

Quick Answer

The Engine Control Module (ECM) monitors the Exhaust Gas Back Pressure Sensor. Common causes include Faulty Exhaust Gas Back Pressure Sensor, Exhaust Gas Back Pressure Sensor harness is open or shorted, Exhaust Gas Back Pressure Sensor 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: P14A0 indicates Exhaust Gas Back Pressure Sensor Open Circuit Or Short Circuit To Earth.
Common causes: Common causes include Faulty Exhaust Gas Back Pressure Sensor, Exhaust Gas Back Pressure Sensor harness is open or shorted, Exhaust Gas Back Pressure Sensor 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.

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Code Popularity 7,959

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P14A0 Description

The Engine Control Module (ECM) monitors the Exhaust Gas Back Pressure Sensor. The ECM sets the OBDII code when the Exhaust Gas Back Pressure Sensor is not to factory specifications.

OBDII Code P14A0 - Exhaust Gas Back Pressure Sensor Open Circuit Or Short Circuit To Earth - AutoCodes.com — P14A0 Code - Exhaust Gas Back Pressure Sensor Open Circuit Or Short Circuit To Earth

What does this mean?

What are the Possible Causes of the DTC P14A0?

Faulty Exhaust Gas Back Pressure Sensor
Exhaust Gas Back Pressure Sensor harness is open or shorted
Exhaust Gas Back Pressure Sensor circuit poor electrical connection

How to Fix the DTC P14A0?

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 P14A0 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 P14A0 code?

Need more information on how to fix the P14A0 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P14A0 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P14A0 BMW — Exhaust Gas Back Pressure Sensor Open Circuit Or Short Circuit To Earth
P14A0 Buick — Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect
P14A0 Cadillac — Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect
P14A0 Chevrolet — Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect
P14A0 GMC — Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect
P14A0 MINI — Exhaust Gas Back Pressure Sensor Open Circuit Or Short Circuit To Earth

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 P14A0 Code

1. What are the common symptoms of OBDII code P14A0?

The common symptoms of OBDII code P14A0 include poor engine performance, reduced fuel efficiency, and possibly the illumination of the Check Engine Light.

2. What causes the OBDII code P14A0 to trigger?

The OBDII code P14A0 is triggered when there is an open circuit or a short circuit to earth in the exhaust gas back pressure sensor circuit.

3. How serious is the OBDII code P14A0?

The OBDII code P14A0 should be addressed promptly to prevent potential damage to the engine and ensure optimal vehicle performance.

4. Can I continue driving with the OBDII code P14A0?

It is not recommended to continue driving with the OBDII code P14A0 present, as it can lead to further issues and potentially worsen the condition of the vehicle.

5. How can I diagnose the OBDII code P14A0?

Diagnosing the OBDII code P14A0 involves using an OBDII scanner to retrieve the code, inspecting the exhaust gas back pressure sensor, and checking the wiring for any faults.

6. What are some repair tips for fixing the OBDII code P14A0?

Repair tips for fixing the OBDII code P14A0 may include repairing or replacing any damaged wiring, replacing the exhaust gas back pressure sensor, and clearing the code with an OBDII scanner.

7. Can I fix the OBDII code P14A0 myself?

If you have the necessary tools and experience, you may be able to fix the OBDII code P14A0 yourself. However, it is recommended to consult a professional mechanic for a proper diagnosis and repair.

8. How much does it cost to repair the OBDII code P14A0?

The cost to repair the OBDII code P14A0 can vary depending on the extent of the issue, the cost of parts, and labor rates. It is advisable to obtain quotes from different repair shops.

9. Will resetting the OBDII code P14A0 make it go away permanently?

Resetting the OBDII code P14A0 may temporarily turn off the Check Engine Light, but if the underlying issue is not fixed, the code is likely to reappear.

10. Is the OBDII code P14A0 specific to certain vehicle makes and models?

The OBDII code P14A0 can be found in various vehicle makes and models that are equipped with an exhaust gas back pressure sensor.