Engine-CodesJeep – P1144 Jeep

P1144 Jeep Code - Fuel Rail Pressure Malfunction Positive Volume Deviation

Quick Answer

The P1144 code in a Jeep indicates a Fuel Rail Pressure Malfunction Positive Volume Deviation. Common causes include Faulty fuel pressure sensor, Failing fuel pump, Clogged fuel filter. 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 Jeep indicates Fuel Rail Pressure Malfunction Positive Volume Deviation.
Common causes
Common causes include Faulty fuel pressure sensor, Failing fuel pump, Clogged fuel filter.
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 09, 2024
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Code P1144 Jeep Description

The P1144 code in a Jeep 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 displaying a positive volume deviation. This issue can have a significant impact on the performance of the vehicle, as the fuel rail pressure plays a crucial role in supplying the engine with the correct amount of fuel for combustion.

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

Common Causes of P1144 Jeep

  1. Faulty fuel pressure sensor
  2. Failing fuel pump
  3. Clogged fuel filter
  4. Malfunctioning fuel injectors
  5. Clogged fuel line

Symptoms of P1144 Jeep

  1. Engine misfires
  2. Rough idling
  3. Decreased fuel efficiency
  4. Engine stalling
  5. Check Engine Light illuminated

How to Fix P1144 Jeep

  1. Perform a diagnostic scan to confirm the P1144 code and identify the specific issue causing the fuel rail pressure malfunction.
  2. Inspect the fuel pressure sensor, fuel pump, fuel filter, fuel injectors, and fuel line for any signs of damage or blockages.
  3. Replace any faulty components such as the fuel pressure sensor, fuel pump, or fuel filter as needed.
  4. Clear the error code and reset the vehicle's ECU to see if the issue has been resolved.
  5. Test drive the vehicle to ensure that the fuel rail pressure is now within the correct range and that the symptoms associated with the P1144 code have been resolved.

Cost to Fix P1144 Jeep

The cost of repairing a P1144 code in a Jeep can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, the repair for this type of problem can range from $200 to $500, including parts and labor. However, it's essential to keep in mind that prices can fluctuate based on your location, the make and model of your vehicle, and the type of engine it has. Additionally, labor rates at auto repair shops can vary, with some charging between $80 and $150 per hour. It's recommended to contact local auto repair shops for a more accurate estimate based on your specific circumstances.

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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