P1404 RAM Code - EGR Position Sensor Rationality Closed
Quick Answer
The Exhaust Gas Recirculation (EGR) valve recirculates exhaust gas to the engine intake for increased efficiency, lower fuel consumption, and reduced NOx emissions. Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Faulty Exhaust Gas Recirculation Valve Solenoid, Exhaust Gas Recirculation valve carbon blockage. 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 RAM indicates EGR Position Sensor Rationality Closed.
- Common causes
- Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Faulty Exhaust Gas Recirculation Valve Solenoid, Exhaust Gas Recirculation valve carbon blockage.
- 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.
Code P1404 RAM Description
The Diagnostic Trouble Code (DTC) will be set when the Engine Control Module (ECM) detects EGR flow or movement when it is not expected.
What are the Possible Causes of the DTC P1404 RAM?
- Faulty Exhaust Gas Recirculation (EGR) Valve
- Faulty Exhaust Gas Recirculation Valve Solenoid
- Exhaust Gas Recirculation valve carbon blockage
How to Fix the DTC P1404 RAM?
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 P1404 RAM 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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Frequently Asked Questions about P1404 RAM Code
1. What does the OBDII code P1404 mean on a RAM vehicle?
P1404 indicates an issue with the Exhaust Gas Recirculation (EGR) Position Sensor, specifically that the EGR valve is not closing as expected or the sensor is providing irrational readings.
2. What are the common symptoms of code P1404 in a RAM vehicle?
Symptoms may include poor engine performance, reduced fuel efficiency, rough idling, the Check Engine Light turning on, and increased emissions.
3. What causes the P1404 code to appear on a RAM vehicle?
Common causes include a stuck EGR valve, carbon buildup in the EGR system, a faulty EGR position sensor, wiring issues, or a malfunctioning PCM.
4. Can I still drive my RAM with a P1404 code?
While the vehicle may still be drivable, ignoring the issue can lead to reduced performance, higher emissions, and potential damage to other engine components over time.
5. How can I fix the P1404 code on my RAM?
Start by cleaning the EGR valve and checking for carbon buildup. If the problem persists, inspect the EGR position sensor, wiring, and connectors, and replace faulty components if necessary.
6. How do I diagnose a P1404 code on a RAM vehicle?
Use an OBDII scanner to confirm the code, then inspect the EGR valve for movement and carbon deposits. Test the EGR position sensor and wiring for continuity and proper operation.
7. Can a bad PCM cause the P1404 code in a RAM?
Yes, a malfunctioning PCM could incorrectly interpret EGR sensor data or fail to control the EGR valve properly, though this is less common.
8. How much does it cost to repair a P1404 code in a RAM vehicle?
The cost depends on the issue. Cleaning the EGR valve may cost $100-$200, while replacing the EGR valve or position sensor could range from $200 to $500, including labor.
9. Will a P1404 code cause my RAM to fail an emissions test?
Yes, a stuck EGR valve or improper EGR function can increase emissions, which may result in failing an emissions test.
10. Can cleaning the EGR valve resolve the P1404 code on my RAM?
In many cases, cleaning the EGR valve to remove carbon deposits can resolve the issue. If cleaning doesn’t work, further diagnostics are needed.
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