AutoCodes – Pontiac – P1404 Pontiac

P1404 Pontiac Code - Exhaust Gas Recirculation Closed Position Performance

Quick Answer

The Powertrain Control Module (PCM) determines that the Exhaust Gas Recirculation (EGR) valve is stuck open if the actual EGR position and the learned closed EGR position vary by more than a predetermined value. Common causes include Carbon blockage of the pintle, Faulty Exhaust Gas Recirculation (EGR) valve. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1404 Pontiac indicates Exhaust Gas Recirculation Closed Position Performance.
Common causes: Common causes include Carbon blockage of the pintle, Faulty Exhaust Gas Recirculation (EGR) valve.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 26,002

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 18, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1404 Pontiac Description

The Powertrain Control Module (PCM) determines that the Exhaust Gas Recirculation (EGR) valve is stuck open if the actual EGR position and the learned closed EGR position vary by more than a predetermined value. The PCM tests for a stuck valve when the desired EGR position is at 0%. The PCM commands the EGR valve to 100% during certain driving conditions in order to clear a possible restriction from the EGR valve if the PCM determines that the valve is stuck open. The PCM retests for a stuck valve when the desired EGR position returns to 0%. A failure timer increments if the stuck EGR valve condition is still present. This Diagnostic Trouble Code (DTC) sets when the timer reaches a predetermined value.

OBDII Code P1404 Pontiac - Exhaust Gas Recirculation Closed Position Performance - AutoCodes.com — P1404 Pontiac Code - Exhaust Gas Recirculation Closed Position Performance

What does this mean?

What are the Possible Causes of the DTC P1404 Pontiac?

Carbon blockage of the pintle
Faulty Exhaust Gas Recirculation (EGR) valve

How to Fix the DTC P1404 Pontiac?

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 does this mean?

Code Tech Notes

On some models, there is a service bulletin for the P1404 code that suggests reprogramming the Powertrain Control Module (PCM) to repair the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1404 Pontiac 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.

Frequently Asked Questions about P1404 Pontiac Code

What does the OBDII code P1404 mean for a Pontiac?

The P1404 code indicates an issue with the Exhaust Gas Recirculation (EGR) valve, specifically that it is not closing properly or is stuck in the closed position.

What are the common symptoms of the P1404 code?

Symptoms may include an illuminated check engine light, rough idling, reduced engine performance, stalling, or increased emissions.

What causes the P1404 code to appear?

Common causes include a faulty EGR valve, carbon buildup in the EGR valve or passages, wiring or connector issues, or a problem with the EGR position sensor.

Can I drive my Pontiac with the P1404 code?

While the car may still be drivable, ignoring the code can lead to reduced fuel efficiency, increased emissions, and potential damage to other engine components.

How can I fix the P1404 code on my Pontiac?

Start by inspecting and cleaning the EGR valve and passages. If the issue persists, consider replacing the EGR valve or diagnosing wiring, connectors, and the EGR position sensor.

How do I know if the EGR valve is the problem?

If cleaning the EGR valve doesnâ€™t resolve the issue, test the EGR valve and position sensor for functionality using a multimeter or scan tool.

Will clearing the P1404 code solve the problem?

Clearing the code without addressing the underlying issue will only temporarily remove the light, and it will likely return once the problem triggers the fault again.

How much does it cost to fix the P1404 code?

Repair costs can vary, but cleaning the EGR valve is inexpensive, while replacing it typically costs between $150 and $400, including parts and labor.

Can a clogged EGR passage trigger the P1404 code?

Yes, carbon buildup or debris in the EGR passages can restrict flow and cause the EGR valve to malfunction, triggering the P1404 code.

Do I need a professional mechanic to fix the P1404 code?

While experienced DIYers can often clean or replace the EGR valve, diagnosing wiring issues or advanced sensor problems may require a professional mechanic.