Acura P1404: EGR Valve Stuck Closed Malfunction

Is your scanner showing Acura P1404?
No worries. We'll show you what it means and how to deal with it.

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OBD Codex, Administrator

Acura P1404: EGR Valve Stuck Closed Malfunction

DIY Difficulty Level
Repair Cost
Can I Still Drive?

What Does The Acura P1404 Code Mean?

Condition for setting the DTC: Engine started, system voltage from 11-16v, ECT sensor from 176-248, IAT sensor less than 212ºF, desired EGR valve position is 0%, and the PCM detected the difference between the Actual and Desired EGR pintle position was over 30% for 5 seconds.

What Are The Potential Causes Of The Acura P1404 Code?

Below are some potential causes of this DTC:

  • EGR valve sticking or binding (check for deposits on the valve)
  • EGR valve is damaged or has failed (if the valve shows signs of excessive heat, check the converter and pipes for a restriction)
  • PCM has failed

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> Acura Engine Control Module
>>> MAYASAF EGR Valve EGV658 Exhaust Gas Recirculation Valve

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

Acura P1404, DTCDECODE.

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