Question about 2000 Ford Explorer
Got code P0401 ''EGR insufficient flow Detected''. What should i do to fix this prob. Also how will this affect my vehicle until I fix prob.?
Remove the EGR valve and clean it out. It's probably carboned up really bad constricting the exhaust flow. Also remove the EGR tubes and clean them out as well. I use brake cleaner and keep spraying the pieces out until it's pretty clean and re-assemble.
Posted on Feb 04, 2009
If this Code And Preading is TRUE to The Word this Most Likely means that you EGR Valve Is Sticking Due to Carbon Build up. The FIX is to Remove and Clean the EGR Valve and Its Mounting SURFACE USE A VACUUM CLEANER TO **** THE DIRTY CARBON THAT IS on The Engine Side . Worts Case Replace Egr Valve, It WILL Cause Poor Fuel Millage if you Let It Go For Too Long
Posted on Feb 04, 2009
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Posted on Jan 02, 2017
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Insufficient EGR Flow
What does that mean?
EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three parts to the EGR system: the EGR valve, an actuator solenoid, and a differential pressure sensor EGR (DPFE). These things work together to deliver the correct amount of recirculation based on engine temperature, load, etc. The P0401 code means that OBD detected an insufficient amount of EGR.
FB.init("dd7d9e9681341cde77587bc6a2029f6f"); OBD-Codes.com on Facebook Symptoms
You may notice drivability problems such as pinging (a.k.a. pre-ignition knock) when the engine is under load or the vehicle is at higher speeds. There may also be other symptoms.
A code P0401 most likely means one or more of the following has happened:
In fixing this code, it is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit.
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