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What does P0404 code mean?

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What does P0404 code mean?

When P0404 is triggered, it means that the PCM has been told that the valve is performing in a way that is outside of its specified parameters. More specifically, the PCM has been told that the valve is closed when it should be open, or vice-versa.

What is EGR flow CKT range performance?

Diagnostic Trouble Code (DTC) P0404 stands for Exhaust Gas Recirculation Circuit Range/Performance Problem. It could mean that your EGR valve isn’t doing what it’s supposed to do in specified parameters such as being fully open when it should only be partially open.

Is code P0404 bad?

How serious is the P0404 code? An EGR system that triggers this code the ECM may disable the EGR system and render it inoperative. The Check Engine Light being on causes the vehicle to fail emission testing. The EGR position is critical for the ECM to properly control EGR valve opening and closing.

What is P0403 code mean?

engine exhaust gas recirculation
P0403 is an OBD-II generic code that indicates that the engine control module (ECM) has detected the engine exhaust gas recirculation (EGR) circuit has malfunctioned. The ECM detected a short or open circuit in the EGR vacuum control solenoid or wiring to the solenoid.

What is code P0405?

P0405 is an OBD-II generic code that the engine control module (ECM) detected the engine exhaust gas recirculation (EGR) sensor has went below its specification range. A short to ground of the sensor input to the ECM.

How do I fix code P0403?

What repairs can fix the P0403 code?

  1. Replacing the shorted or open EGR vacuum solenoid.
  2. Replacing a corroded connector to the EGR vacuum control solenoid.
  3. Repairing the wiring shorted to the EGR vacuum control solenoid.

How do I know if my EGR solenoid is bad?

EGR valve symptoms can vary, however, the most common symptoms of a faulty EGR valve are explored below:

  1. Your engine has a rough idle.
  2. Your car has poor performance.
  3. You have increased fuel consumption.
  4. Your car frequently stalls when idling.
  5. You can smell fuel.
  6. Your engine management light stays on.

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