AutoCodes – Dodge – P1143 Dodge

P1143 Dodge Code - Fuel Rail Pressure Malfunction Positive Pressure Deviation

Quick Answer

P1143 Dodge indicates Fuel Rail Pressure Malfunction Positive Pressure Deviation. Common causes include Incorrect fuel pressure, Faulty Fuel Rail Pressure Solenoid, Fuel Rail Pressure Solenoid harness is open or shorted. 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: P1143 Dodge indicates Fuel Rail Pressure Malfunction Positive Pressure Deviation.
Common causes: Common causes include Incorrect fuel pressure, Faulty Fuel Rail Pressure Solenoid, Fuel Rail Pressure Solenoid harness is open or shorted.
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 3,849

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1143 Dodge Description

OBDII Code P1143 Dodge - Fuel Rail Pressure Malfunction Positive Pressure Deviation - AutoCodes.com — P1143 Dodge Code - Fuel Rail Pressure Malfunction Positive Pressure Deviation

What does this mean?

What are the Possible Causes of the DTC P1143 Dodge?

Incorrect fuel pressure
Faulty Fuel Rail Pressure Solenoid
Fuel Rail Pressure Solenoid harness is open or shorted
Fuel Rail Pressure Solenoid circuit poor electrical connection
Air in fuel system

How to Fix the DTC P1143 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 P1143 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.