Do it yourself
Frequently asked questions about cars and motorcycles
Car Tutorial (Do it yourself) Motorcycle Tutorial (Do it yourself) Frequently Asked Questions

What does the Citroen P0401 error code indicate?
Years

Answer

The error code P0401 for Citroen models is activated when exhaust gas recirculation is insufficient. The causes can be: -A defect in the EGR valve opening -A defect in the EGR temperature sensor -Clogging of the EGR passages. Symptoms of this malfunction can include: warning light turning on, strange noises during ignition, and a too high percentage during exhaust emissions. Repairs carried out in the workshop include: replacing the EGR valve, replacing a vacuum line of the valve, replacing the sensor, removing obstructions from sensors or tubes.
Posted on: 12 June 2023 by ScegliAuto

Videos on similar topics (EGR valve)

What does error code 18 of the Chevrolet Prisma indicate?
(Various brands) Various On Chevrolet vehicles, especially Chevrolet Prisma, error code 18 may appear on the instrument panel. This error code, as reported in the instruction
How to reset code 89 on an Opel vehicle?
(Various brands) Various (2013-2019 / ) Error code 89, whether it is on an Opel vehicle or a Chevrolet vehicle, indicates a generic error and the message that may appear along with the code
How to reset CC ID 49 error codes on BMW?
(Various brands) Various Access to the cc-id codes on the BMW can provide further information on the condition of the car by determining in detail the type of problem that ma

How to solve the P20E8 error on a 2017 Peugeot 208?
Peugeot 208 (2012-2019 / MK 1, A9) In this video, we see how a YouTuber brilliantly resolved a detected error on the EOBD (European On Board Diagnostic) port, the P20E8 error, which co
How to decarbonize the EGR Valve of Citroen Jumper.
Citroen Jumper (2006-2014 / MK 2) In this video, we see how it is possible to easily reach the EGR valve of the Citroen Jumper (but also of the Fiat Ducato or the Peugeot Boxer, the p
How to reset the Lancia Ypsilon lambda probe error
Lancia Ypsilon (2011-2023 / Y3, Ypsilon 3, 846, MK 3) If we detect that the particulate filter malfunction warning light comes on, it is necessary to check the Lambda probe. Probably this probe has becom
How to replace the EGR valve on a Citroen C3 1.4 HDI.
Citroen C3 (2009-2016 / SC) In this video, we see how to change the EGR valve on a Citroen C3 1.4 HDI: we open the hood and disconnect the mass airflow sensor valve and the elec
Cleaning the exhaust gas recirculation circuit Opel Corsa 1.3 cdti
Vauxhall Corsa (2006-2014 / Corsa D) The EGR valve has the function of introducing a part of the exhaust gases back into the intake in order to reduce emissions; constant contact with th
What does it mean when the "Hill Hold Control" system is not available? Answer: 29-06-2023
What does x100 mean? Answer: 29-06-2023
Why is the trunk of the Mercedes locked? Answer: 28-06-2023
Where is the battery located in the Honda Forza? Answer: 28-06-2023
What problems does the Opel 1.6 CDTI engine have? Answer: 28-06-2023
What problems does the Opel 1.5 Diesel engine have? Answer: 28-06-2023
How much does it cost to replace the external rearview mirror? Answer: 28-06-2023
What to do if the Iveco Daily inspection has expired? Answer: 28-06-2023
What does the illuminated ABS light indicate on the Kymco Downtown 300I? Answer: 28-06-2023
When does the message SRS FAULT VISIT WORKSHOP appear in Mercedes cars? Answer: 28-06-2023
What does the spring-shaped indicator light indicate? Answer: 28-06-2023
Why is the fuel cap locked? Answer: 28-06-2023
What do the red lights on Harley Davidsons indicate? Answer: 28-06-2023
What does the glow plug indicator on Mercedes indicate? Answer: 28-06-2023
What does code 84 mean in Opel? Answer: 27-06-2023
How much does a turbine cost? Answer: 27-06-2023
What should you do if the remote control of a Volkswagen car is not working? Answer: 27-06-2023
Where can I find the stereo code for my Volkswagen? Answer: 27-06-2023
What is the position of the oil drain plug in the Yamaha YZ450GF? Answer: 27-06-2023
Why did the speedometer stop working? Answer: 27-06-2023