Engine-CodesDodge – P1351 Dodge

P1351 Dodge Code - No Change in MAP From Start To Run

Quick Answer

The P1351 diagnostic trouble code (DTC) for Dodge vehicles indicates that there has been no change in the Manifold Absolute Pressure (MAP) sensor reading from when the engine is started to when it is running. Common causes include Faulty MAP sensor, Wiring or connector issues, Vacuum leaks. 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
P1351 Dodge indicates No Change in MAP From Start To Run.
Common causes
Common causes include Faulty MAP sensor, Wiring or connector issues, Vacuum leaks.
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 10, 2024
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Code P1351 Dodge Description

The P1351 diagnostic trouble code (DTC) for Dodge vehicles indicates that there has been no change in the Manifold Absolute Pressure (MAP) sensor reading from when the engine is started to when it is running. The MAP sensor is a crucial component of the engine management system, as it measures the pressure within the intake manifold and sends this information to the engine control unit (ECU). This data is essential for determining the correct air-fuel mixture for combustion, ignition timing, and other engine functions.

OBDII Code P1351 Dodge - No Change in MAP From Start To Run
P1351 Dodge Code - No Change in MAP From Start To Run

Common Causes of P1351 Dodge

  1. Faulty MAP sensor
  2. Wiring or connector issues
  3. Vacuum leaks
  4. ECU malfunction
  5. Clogged or dirty air filter

Symptoms of P1351 Dodge

  1. Rough idling
  2. Hesitation or lack of power during acceleration
  3. Engine stalling
  4. Decreased fuel efficiency
  5. Check Engine Light illuminated

How to Fix P1351 Dodge

  1. Begin by diagnosing the issue using a scan tool to confirm the P1351 code and check the MAP sensor's voltage output.
  2. Inspect the MAP sensor, wiring, and connectors for any visible damage or corrosion. Replace as necessary.
  3. Test for vacuum leaks by using a smoke machine or propane torch around intake components while monitoring engine RPMs.
  4. Clean or replace the air filter to ensure proper airflow to the engine.
  5. If the issue persists, consult a professional mechanic for further diagnosis and potential ECU reprogramming or replacement.

Cost to Fix P1351 Dodge

The cost of repairing a P1351 code on a Dodge vehicle can vary depending on the specific cause of the issue. In general, replacing a MAP sensor can cost between $50 to $200, while addressing wiring or connector issues may range from $100 to $300. If the ECU needs to be reprogrammed or replaced, the cost can be significantly higher, potentially reaching $500 or more. It is important to factor in labor costs, which can range from $80 to $150 per hour at most auto repair shops. Additionally, prices can vary based on location, vehicle make and model, and the severity of the issue.

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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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