P0406 FORD 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 I fix error P0406?

What repairs can fix the P0406 code?

  1. Replacing the EGR valve.
  2. Repairing or replacing wiring harness as needed.
  3. Repairing poor electrical connections.
  4. Replacing the vacuum line.
  5. Cleaning excessive carbon buildup.


How much does it cost to fix a P0406?

around $75.00

With a P0406, more than likely the problem is with the EGR sensor component rather than the solenoid inside the EGR valve. On average this component (aftermarket) runs around $75.00. Replacing it will usually take around 1.5 hours of labor; not including diagnostics time.

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How do you fix an exhaust gas recirculation sensor A circuit high?

Zitat von Youtube: Looking at the engine from the front the egr valve is located towards the rear of the engine just to the right side of the center. First carefully remove the egr valve from your car.

What does exhaust gas recirculation sensor A circuit high mean?

Diagnostic trouble code (DTC) P0406 stands for “Exhaust Gas Recirculation Sensor A Circuit High.” It means that the powertrain control module (PCM) perceives a high voltage signal from the exhaust gas recirculation (EGR) position sensor.

Where is EGR sensor located?

Mechanical EGR valve position sensors are mounted on the top of the EGR valve. EGR pressure sensors will be located close to the EGR valve as the exhaust gas hose must be connected to the sensor as well as the valve.

How do you clean an EGR valve without removing it?

Zitat von Youtube: The air intake pipe that comes off the air box. Simply undo it take the can and then trade it in in small intervals.

How do you clean an EGR valve?

How to Clean EGR Valve?

  1. Spray cleaner in both openings of the EGR valve. …
  2. If it’s really dirty, you may need to use a pick to scrape off the bigger chunks of carbon or a wire brush.
  3. You may also need to let the cleaner sit in the valve for several hours.
  4. Don’t be afraid to use too much cleaner.

How much does it cost to replace EGR sensor?

The average cost for EGR valve replacement is between $332 and $413. Labor costs are estimated between $81 and $103 while parts are priced between $251 and $311. This range does not include taxes and fees, and does not factor in your specific vehicle or unique location.

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How long do EGR valves last?

An average car’s EGR valve has a lifespan of approximately 10 years in service. Proper maintenance of the valve is a must if you want to avoid any performance related issues on your car. If you notice a smell of fuel that comes out from under the hood or rough idling, then it might be time to replace the valve.

How do you replace an exhaust gas recirculation valve?

Zitat von Youtube: Right here we just have to take the two bolts off and hold it in place so you get a wrench. And put it on the bolt. And take them both off then we unplug the vacuum line that comes out of the hole.

How do you test a EGR valve?

Zitat von Youtube: Using. It's a little tough to see the the EGR valve it's underneath the airbox.

How do you change a pressure sensor on a EGR valve?

How to Replace an EGR Valve Pressure Sensor

  1. Unfasten the negative battery cable from the battery post with an open-end wrench. …
  2. Remove the two bolts that secure the pressure sensor to the firewall with a socket wrench and take the sensor off the firewall. …
  3. Dispose of the old EGR valve pressure sensor.


How do you clean a EGR valve?

How to Clean EGR Valve?

  1. Spray cleaner in both openings of the EGR valve. …
  2. If it’s really dirty, you may need to use a pick to scrape off the bigger chunks of carbon or a wire brush.
  3. You may also need to let the cleaner sit in the valve for several hours.
  4. Don’t be afraid to use too much cleaner.
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How do you replace an exhaust gas recirculation valve?

Zitat von Youtube: Right here we just have to take the two bolts off and hold it in place so you get a wrench. And put it on the bolt. And take them both off then we unplug the vacuum line that comes out of the hole.

How do you test a EGR sensor?

Zitat von Youtube: But really the best thing you can do is get yourself one of these vacuum testers now let me just reposition the camera here. Now we will test this valve in a running vehicle.