Table of Contents
How do I fix my po401 code?
What repairs can fix the P0401 code?
- Replacing the leaking or clogged EGR valve.
- Replacing a broken vacuum line to the EGR valve or control solenoid.
- Replacing an EGR temperature sensor or clean the carbon off of it to repair it if it does not register enough of a temperature change.
How can I repair a P0401 exhaust gas recirculation flow insufficient detected?
How to Fix
- Use vacuum pump to open the EGR valve while monitoring the DPFE voltage and RPM engine.
- Clean the EGR valve and tubing to remove the deposits.
- Check the voltage at DPFE and compare to specified values, You can also refer to your repair manual for your specific model.
Where is the EGR temperature sensor located?
The EGR temperature sensor is usually mounted in the exhaust manifold or mounted near the EGR valve.
What is a po401 code?
Code P0401 Meaning EGR valves can malfunction by becoming stuck open or closed due to carbon buildup. This is likely due to faulty or clogged EGR valve or carbon buildup in the intake manifold or on the EGR temperature sensor.
How much does it cost to fix P0401?
P0401 Repair Costs Code P0401 warns of problems with your EGR system, from a faulty valve to a dirty temperature sensor. The severity of the problem varies depending on the extent of the components affected. Total repair costs range from $150 to $750, inclusive of labor and parts.
Can I drive with a P0401 code?
Hi There, Code P0401 relates to the EGR valve flow. When this code is triggered, the computer has detected that the flow is insufficient. Driving the car until next week will not cause any harm, although the vehicle may not run well.
What can trigger an EGR code?
Restricted or clogged EGR tubes. A clogged catalytic converter. Carbon buildup on the EGR temperature sensor. Faulty or lack of vacuum supply to the EGR.
What are the symptoms of a bad EGR temperature sensor?
Symptoms of a Bad or Failing EGR Temperature Sensor
- Engine ping or knock. One of the first symptoms commonly associated with a bad or failing EGR temperature sensor is engine ping or knock.
- Check Engine Light comes on.
- Failed emissions test.
What are the symptoms of a bad EGR valve sensor?
EGR valve symptoms can vary, however, the most common symptoms of a faulty EGR valve are explored below:
- Your engine has a rough idle.
- Your car has poor performance.
- You have increased fuel consumption.
- Your car frequently stalls when idling.
- You can smell fuel.
- Your engine management light stays on.