AutoCodes – Dodge – P144F Dodge

P144F Dodge Code - EGR Cooler Bypass Status Line Circuit High

Quick Answer

The Exhaust Gas Recirculation (EGR) Cooler Bypass Valve is used to redirect the EGR gases around the cooler when the engine is under certain operating conditions. Common causes include Faulty EGR Cooler Bypass Valve, EGR Cooler Bypass Valve harness is open or shorted, EGR Cooler Bypass 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: P144F Dodge indicates EGR Cooler Bypass Status Line Circuit High.
Common causes: Common causes include Faulty EGR Cooler Bypass Valve, EGR Cooler Bypass Valve harness is open or shorted, EGR Cooler Bypass 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 4,471

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 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P144F Dodge Description

The Exhaust Gas Recirculation (EGR) Cooler Bypass Valve is used to redirect the EGR gases around the cooler when the engine is under certain operating conditions. The EGR Cooler Bypass Valve is a smart device which communicates it's status to the Powertrain Control Module (PCM). At key on the EGR Cooler Bypass Valve drives the signal line low and then high and the PCM monitors for the correct status response from the EGR Cooler Bypass Valve. Throughout engine operation the PCM sends commands via the signal circuit to the EGR Cooler Bypass Valve and monitors the status line to confirm that the EGR Cooler Bypass Valve has reached the commanded position. When a fault occurs, the EGR Cooler Bypass valve will send a signal of less than one Volt on the status line to the PCM. This monitor is a one trip fault.

OBDII Code P144F Dodge - EGR Cooler Bypass Status Line Circuit High - AutoCodes.com — P144F Dodge Code - EGR Cooler Bypass Status Line Circuit High

What does this mean?

What are the Possible Causes of the DTC P144F Dodge?

Faulty EGR Cooler Bypass Valve
EGR Cooler Bypass Valve harness is open or shorted
EGR Cooler Bypass Valve circuit poor electrical connection

How to Fix the DTC P144F Dodge?

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 P144F Dodge 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.

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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 P144F Dodge Code

1. What does the OBDII code P144F mean on a Dodge?

P144F indicates an issue with the EGR Cooler Bypass Status Line Circuit being detected as "high," meaning the circuit is experiencing abnormal voltage or resistance.

2. What are the common symptoms of the P144F code on a Dodge?

Symptoms may include an illuminated check engine light, reduced engine performance, decreased fuel efficiency, and potential overheating of the EGR system.

3. What causes the P144F code to appear?

Common causes include a faulty EGR cooler bypass valve, damaged or shorted wiring in the bypass circuit, a malfunctioning EGR cooler bypass sensor, or a failed PCM.

4. How do I diagnose the P144F code on my Dodge?

Start by inspecting the EGR cooler bypass valve and its wiring for damage or corrosion. Use a multimeter to test the circuit voltage and resistance, and verify sensor operation with a scan tool.

5. Can the P144F code cause engine damage if ignored?

Prolonged operation with this code could lead to excessive exhaust gas temperatures or improper EGR function, potentially causing engine wear or damage over time.

6. How do I fix the P144F code on a Dodge?

Repairs may involve replacing the EGR cooler bypass valve, repairing or replacing damaged wiring, cleaning the EGR system, or replacing a faulty bypass sensor.

7. How much does it cost to fix the P144F code?

Repair costs can range from $100 to $500, depending on whether only wiring repairs are needed or if components like the EGR cooler bypass valve require replacement.

8. Can I drive my Dodge with the P144F code active?

Driving with this code is not recommended, as it can lead to poor engine performance and potential long-term damage to the EGR system.

9. Will clearing the P144F code solve the problem?

Clearing the code without addressing the underlying issue will only provide a temporary fix. The code will likely return if the problem persists.

10. Is the P144F code specific to Dodge vehicles?

While the P144F code is most commonly associated with Dodge vehicles, similar codes may appear on other makes with EGR cooler bypass systems. Always refer to your vehicleâ€™s specific diagnostic information.