AutoCodes – Generic – P142F

P142F Code - Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic

Quick Answer

The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation Sensor 'D'. Common causes include Faulty Exhaust Gas Recirculation Sensor 'D', Exhaust Gas Recirculation Sensor 'D' harness is open or shorted, Exhaust Gas Recirculation Sensor 'D' 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: P142F indicates Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic.
Common causes: Common causes include Faulty Exhaust Gas Recirculation Sensor 'D', Exhaust Gas Recirculation Sensor 'D' harness is open or shorted, Exhaust Gas Recirculation Sensor 'D' 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 3,087

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 Sep 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P142F Description

The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation Sensor 'D'. The PCM sets the OBDII code when the Exhaust Gas Recirculation Sensor 'D' is not to factory specifications.

OBDII Code P142F - Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic - AutoCodes.com — P142F Code - Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic

What does this mean?

What are the Possible Causes of the DTC P142F?

Faulty Exhaust Gas Recirculation Sensor 'D'
Exhaust Gas Recirculation Sensor 'D' harness is open or shorted
Exhaust Gas Recirculation Sensor 'D' circuit poor electrical connection

How to Fix the DTC P142F?

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 P142F 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 P142F code?

Need more information on how to fix the P142F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P142F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P142F Buick — Particulate Matter Sensor Control Module Temperature Sensor 2 High Voltage
P142F Cadillac — Particulate Matter Sensor Control Module Temperature Sensor 2 High Voltage
P142F Chevrolet — Particulate Matter Sensor Control Module Temperature Sensor 2 High Voltage
P142F Ford — Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic
P142F GMC — Particulate Matter Sensor Control Module Temperature Sensor 2 High Voltage
P142F Lincoln — Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic
P142F Mercury — Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic

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 P142F Code

1. What are the common symptoms of OBDII code P142F related to the Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic?

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

2. What are the possible causes of OBDII code P142F indicating an issue with the EGR Sensor 'D' Circuit?

- Possible causes can include a faulty EGR sensor, damaged wiring or connectors, EGR system blockages, or issues with the engine control module.

3. How can I diagnose the Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic issue triggering code P142F?

- To diagnose the problem, you can use an OBDII scanner to read the code and check for any related freeze frame data. Additionally, inspect the EGR sensor, wiring, and connections for any visible damage.

4. Can a dirty EGR system lead to the intermittent/erratic operation of the EGR Sensor 'D' causing code P142F?

- Yes, a dirty EGR system can restrict the flow of exhaust gases, affecting the sensor's operation and triggering the P142F code. Regular maintenance of the EGR system is crucial.

5. What are some repair tips for resolving OBDII code P142F associated with the Exhaust Gas Recirculation Sensor 'D' Circuit Intermittent/Erratic issue?

- Repair tips may include cleaning or replacing the EGR sensor, checking and repairing any damaged wiring or connectors, ensuring proper EGR system functionality, and resetting the error code.

6. Are there any safety concerns associated with driving a vehicle with an unresolved P142F code related to the EGR Sensor 'D' Circuit?

- Continuing to drive with this issue may lead to further damage to the engine or emissions system, potentially causing more severe problems over time. It is advisable to address the problem promptly.

7. Will disconnecting the EGR system temporarily resolve the P142F code related to the EGR Sensor 'D' Circuit?

- Disconnecting the EGR system is not a recommended solution, as it can lead to increased emissions, reduced fuel efficiency, and potential engine damage. It is best to diagnose and repair the root cause of the issue.

8. How crucial is it to address the OBDII code P142F signifying a problem with the Exhaust Gas Recirculation Sensor 'D' Circuit?

- It is important to address this code promptly to ensure proper engine performance, fuel efficiency, and emissions compliance. Ignoring the issue can lead to more significant problems down the line.

9. Can a DIY enthusiast with basic automotive knowledge repair the P142F code related to the EGR Sensor 'D' Circuit issue?

- Depending on the exact cause of the problem, some DIY enthusiasts may be able to address the issue by inspecting and potentially cleaning or replacing the EGR sensor or related components. However, complex issues may require professional assistance.

10. How can regular maintenance help prevent the occurrence of OBDII code P142F linked to the Exhaust Gas Recirculation Sensor 'D' Circuit?

- Regular maintenance, such as cleaning the EGR system components, inspecting wiring and connectors, and monitoring engine performance, can help prevent issues leading to the P142F code and ensure smooth operation of the EGR system.