AutoCodes – Lincoln – P140D Lincoln

P140D Lincoln Code - Exhaust Gas Recirculation Control Circuit 'B' Range/Performance

Quick Answer

The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation (EGR) Valve. Common causes include Faulty Exhaust Gas Recirculation Valve, Exhaust Gas Recirculation Valve harness is open or shorted, Exhaust Gas Recirculation Valve 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: P140D Lincoln indicates Exhaust Gas Recirculation Control Circuit 'B' Range/Performance.
Common causes: Common causes include Faulty Exhaust Gas Recirculation Valve, Exhaust Gas Recirculation Valve harness is open or shorted, Exhaust Gas Recirculation Valve 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 1,155

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 P140D Lincoln Description

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

OBDII Code P140D Lincoln - Exhaust Gas Recirculation Control Circuit 'B' Range/Performance - AutoCodes.com — P140D Lincoln Code - Exhaust Gas Recirculation Control Circuit 'B' Range/Performance

What does this mean?

What are the Possible Causes of the DTC P140D Lincoln?

Faulty Exhaust Gas Recirculation Valve
Exhaust Gas Recirculation Valve harness is open or shorted
Exhaust Gas Recirculation Valve circuit poor electrical connection

How to Fix the DTC P140D Lincoln?

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 P140D Lincoln 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 P140D Lincoln code?

Need more information on how to fix the P140D Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P140D Lincoln 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 P140D Lincoln Code

1. What are common symptoms of OBDII code P140D in a Lincoln?

- Common symptoms include rough idling, reduced engine performance, decreased fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P140D in a Lincoln?

- The code P140D typically indicates issues with the exhaust gas recirculation (EGR) control circuit, such as a faulty EGR valve, damaged wiring, or a malfunctioning EGR position sensor.

3. How can I diagnose the OBDII code P140D in my Lincoln?

- Diagnosing the code may involve using an OBDII scanner to retrieve the specific fault code, conducting a visual inspection of EGR system components, checking for loose or damaged wiring, and testing the EGR valve and related sensors.

4. Can I still drive my Lincoln with the OBDII code P140D present?

- It is generally not recommended to drive your Lincoln with the code P140D present, as it can lead to further engine damage and decreased fuel efficiency. It is best to address the issue promptly.

5. How can I repair the OBDII code P140D in my Lincoln?

- Repair options may include cleaning or replacing the EGR valve, repairing any damaged wiring, replacing the EGR position sensor, or addressing any other identified issues in the EGR control circuit.

6. Will resetting the check engine light resolve the OBDII code P140D in my Lincoln?

- Resetting the check engine light may temporarily clear the code, but it will not fix the underlying issue causing the code. It is important to diagnose and repair the problem to prevent it from reoccurring.

7. Are there any preventive maintenance tips to avoid OBDII code P140D in a Lincoln?

- Regularly servicing and inspecting the EGR system, using high-quality fuel and engine oil, and driving your Lincoln responsibly can help prevent issues that may trigger the code P140D.

8. Can a DIY enthusiast fix the OBDII code P140D in a Lincoln?

- While some aspects of diagnosing and repairing the code P140D can be done by a skilled DIY enthusiast, it is recommended to seek professional help for a thorough diagnosis and proper repair to ensure the issue is addressed correctly.

9. How much does it typically cost to repair the OBDII code P140D in a Lincoln?

- The cost of repairing the code P140D can vary depending on the specific issue causing the code, the labor rates in your area, and the cost of parts. It is advisable to obtain quotes from reputable mechanics or repair shops.

10. Will ignoring the OBDII code P140D in my Lincoln cause further damage?

- Ignoring the code P140D can lead to reduced engine performance, increased emissions, and potential damage to other engine components over time. It is best to address the issue promptly to prevent further damage.