Common questions

What causes a P0406 code?

What causes a P0406 code?

The P0406 code is the result of the exhaust gas circulation (EGR) sensor A having a high circuit voltage. This code is set when the ECM identifies the EGR voltage is higher than the specified range, thus triggering the check engine light to illuminate on the vehicle dashboard.

How do you fix P0131?

What repairs can fix the P0131 code?

  1. Confirm P0131 is present with a scan tool.
  2. Perform a visual inspection of the bank 1 sensor 1 wiring replacing or repairing any wiring that is found to be faulty.
  3. Check voltage and resistance of bank 1 sensor 1.
  4. If necessary replace the oxygen sensor bank 1 sensor 1 with a new sensor.

What is trouble code p0406?

P0406 code definition. P0406 is a general ODB2 trouble code indicating a fault within the exhaust gas recirculation EGR circuit.

What does p0404 OBD code mean?

OBD-II Code P0404 is defined as a Exhaust Gas Recirculation Circuit Range/Performance NOx gases, which cause acid rain and respiratory problems, are formed when the engine’s combustion temperature is too high (2500° F). EGR systems are used to reduce the combustion temperature, thus reducing NOx formation. Aug 12 2019

What does code p0402 mean?

What the P0402 code means. P0402 is an OBD-II generic code that the engine control module (ECM) has detected indicating the engine exhaust gas recirculation ( EGR ) valve is flowing too much recirculated exhaust gases when it is commanded to open the flow of gases into the intake manifold.

What is engine code p0405?

The P0405 code indicates some problem with the Exhaust Gas Recirculation system. It is triggered when the PCM does not detect a certain degree of change in the manifold air pressure as the EGR valve activates. Oct 22 2019

Share this post