Engine-CodesChrysler – P1144 Chrysler

P1144 Chrysler Code - Fuel Rail Pressure Malfunction Positive Volume Deviation

Quick Answer

The P1144 Chrysler code indicates a Fuel Rail Pressure Malfunction Positive Volume Deviation. Common causes include Faulty fuel pressure sensor, Clogged fuel filter, Failing fuel pump. 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
P1144 Chrysler indicates Fuel Rail Pressure Malfunction Positive Volume Deviation.
Common causes
Common causes include Faulty fuel pressure sensor, Clogged fuel filter, Failing fuel pump.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code P1144 Chrysler Description

The P1144 Chrysler code indicates a Fuel Rail Pressure Malfunction Positive Volume Deviation. This means that the fuel rail pressure in the vehicle's fuel system is not within the expected range, specifically showing a positive volume deviation. The fuel rail is responsible for delivering pressurized fuel to the engine's fuel injectors, ensuring proper combustion and engine performance. When the fuel rail pressure deviates from the specified range, it can lead to various issues affecting the vehicle's performance and efficiency.

OBDII Code P1144 Chrysler - Fuel Rail Pressure Malfunction Positive Volume Deviation
P1144 Chrysler Code - Fuel Rail Pressure Malfunction Positive Volume Deviation

Common Causes of P1144 Chrysler

  1. Faulty fuel pressure sensor
  2. Clogged fuel filter
  3. Failing fuel pump
  4. Fuel system leak
  5. Issues with the fuel pressure regulator

Symptoms of P1144 Chrysler

  1. Engine misfires or hesitation during acceleration
  2. Rough idling or stalling
  3. Reduced fuel efficiency
  4. Check Engine Light illuminated on the dashboard

How to Fix P1144 Chrysler

  1. Diagnose the specific cause of the fuel rail pressure deviation using a diagnostic scanner.
  2. Inspect the fuel pressure sensor, fuel filter, fuel pump, and fuel system for any signs of damage or malfunction.
  3. Replace the faulty component causing the pressure deviation, such as the fuel pressure sensor or fuel pump.
  4. Clear the diagnostic trouble codes from the vehicle's computer system.
  5. Test drive the vehicle to ensure that the issue has been resolved and that the fuel rail pressure is within the correct range.

Cost to Fix P1144 Chrysler

The typical repair costs for addressing a Fuel Rail Pressure Malfunction Positive Volume Deviation can range from $200 to $600, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. Rates may be higher at dealerships or in metropolitan areas, while independent shops often offer more competitive pricing. For a more accurate estimate, it is recommended to consult with local auto repair shops.

When is the Code Detected?

The ECM has determined that the fuel rail pressure is too high for a specific condition

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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.

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