[SOLVED] Dodge P1451 Code: Fast Fix For Diesel Particulate Filter

The OBD code P1451 for Dodge indicates a problem with the Air Injection System.

Symptoms include the Engine Light being ON.

Causes may include a faulty Air Injection Pump, blockage in the system, defective Oxygen Sensor, or wiring issues.

This issue should be addressed promptly.

A possible fix is to inspect the system components and wiring for any damage or poor connections.

Repair Importance Level	10.0 (Out of 10)
Estimated Repair Time	Approximately 1.0 hour
Repair Difficulty Level	10.0 (Out of 10)

Symptoms of the Dodge p1451 OBD Code

The Dodge P1451 fault code typically triggers the check engine light due to an EVAP system issue.

Symptoms: Engine Light ON.
Possible fuel cap warning message on the dashboard.
Vehicle may exhibit a rough idle.
Possible decrease in fuel efficiency.

Causes of the Dodge p1451 OBD Code

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The P1451 code on a Dodge typically indicates a problem with the EVAP system.

P1451 can be caused by a faulty Air Injection Pump.
A blockage in the system.
A defective Oxygen Sensor.
An Air Injection Pump harness that is open or shorted.
Or an Air Injection Pump circuit with a poor electrical connection.

Fixing Dodge Error Code p1451 Step By Step

Replace the leak detection pump solenoid to address Dodge P1451 fault code.

To fix Dodge OBDII code P1451, first, review the ‘Possible Causes’ mentioned above and visually examine the corresponding wiring harness and connectors.
Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
Next, check the integrity of the EVAP system hoses and components for any leaks or damage.
Inspect the EVAP purge solenoid for proper operation and replace if necessary.
Clear the fault code using a scan tool and test drive the vehicle to verify the repair.
If the code returns, perform a smoke test on the EVAP system to pinpoint any leaks.
Replace any faulty components identified during the smoke test.

Cost Of Fixing Dodge p1451 Fault Code

Diagnosing and repairing Dodge code P1451 may involve checking the EVAP system for leaks or faulty components.

The cost to diagnose and fix the Dodge OBD code P1451 typically ranges from $75 to $150, based on an estimated repair time of 1. 0 hour.

Factors like shop rates and complexity of the repair can influence the final cost.

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Details of the Dodge p1451 OBD Code

Dodge fault code P1451 relates to the EVAP system’s inability to bleed fuel tank vacuum.

Dodge OBD code P1451 indicates a problem with the EVAP system vent control valve.

This code is triggered by the Engine Control Module (ECM) when it detects a malfunction in the vent control valve circuit.

The vent control valve is part of the EVAP system, which is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere.

When the vent control valve malfunctions, it can lead to issues with the proper operation of the EVAP system, potentially causing emissions problems.

Mechanic’s Tech Notes

Detailed information on Dodge fault code P1451, including symptoms, causes, and solutions for effective troubleshooting.

To diagnose OBDII code P1451 on a Dodge, start by visually inspecting the wiring harness and connectors related to the transmission control module (TCM).

Look for any damage or corrosion on the connector pins.

Use a multimeter to check TCM power and ground connections.

Verify TCM communication over the Controller Area Network (CAN) using a scan tool.

If necessary, consider reprogramming or reflashing the TCM.

This process can help identify and address issues causing the P1451 fault code.

FAQ

1. What are the common causes of OBD code P1451 in a Dodge vehicle?

Common causes of OBD code P1451 in a Dodge vehicle include a faulty air injection pump, blockage in the system, defective oxygen sensor, or issues with the air injection pump circuit.

2. How can I diagnose and fix OBD code P1451 in my Dodge vehicle?

Diagnose P1451 in Dodge: Check for faulty air injection pump, blockage, defective oxygen sensor, or wiring issues. Inspect harness, connectors, and components for damage or corrosion.

3. Is it safe to continue driving with OBD code P1451 present in my Dodge vehicle?

It is not safe to continue driving with OBD code P1451 in your Dodge. Check for faulty air injection pump, blockage, or wiring issues immediately.

Wrap Up

If your Dodge is displaying OBD code P1451, you may experience issues with the EVAP system, such as difficulty starting the engine, decreased fuel efficiency, or a strong fuel odor.

This code typically indicates a problem with the EVAP system’s vent control valve, purge valve, or a leak in the system caused by damaged hoses or loose connections.

To address Dodge OBD code P1451, start by inspecting the EVAP system components for any visible damage or leaks.

Check the wiring harness and connectors for any signs of wear or corrosion.

Test the vent control valve and purge valve