Engine-Codes - Acura - P1404 Acura

P1404 Acura Code - EGR Valve Stuck Closed

- Code Popularity: 3,226 Views
- Repair Importance Level: 2/3
- Repair Difficulty Level: 2/3
Table of contents
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What are the Possible Causes of the DTC P1404 Acura?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Exhaust Gas Recirculation (EGR) valve
  • Faulty Exhaust Gas Recirculation valve solenoid
  • Exhaust Gas Recirculation valve carbon blockage
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How to Fix the DTC P1404 Acura?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1404 Acura code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P1404 Acura Code Mean?

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.
P1404 Acura Code - EGR Valve Stuck Closed

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