ford error code po401 Plain City Ohio

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ford error code po401 Plain City, Ohio

Of course the whole EGR system needs to be checked thoroughly to diagnose the issue, but if everything check out OK, you might want to try replacing the EGR valve. The main purpose of the EGR system is to reduce the amount of the nitrogen oxides (NOx) in the exhaust emission. In this case the computer does not detect enough EGR flow. This code came a month ago and my mechanic has tested the EGR system and everything was working properly.

pre-ignition knock) when the engine is under load or the vehicle is at higher speeds. Q: Code P0401 in Chrysler Pacifica. AutoCodes.com Comments Powered by Disqus Repair Importance Level: 2 1=Low 2=Medium 3=High Repair Difficulty Level: 2 1=Easy 2=Moderate 3=Hard AutoCodes.com FREE Android App Search Codes By Make How to Fix Engine Code P0401 Each car manufacturer has their own EGR system design but the most likely two causes of this code are the valve itself or passageways (many

Are there any common issues that could cause this code? Replacing the EGR valve with an updated part often solves the problem. The EGR flow is at its maximum during steady cruising. There may also be other symptoms.

For this reason the first thing I do is look to see if there are clogged passages in the EGR system that can be cleaned, most times there is no cost What Causes the P0401 Code? Jon 200,185 views 9:28 Toyota Modulator Valve P0401 disassembly - Duration: 5:29. Sign in 31 Loading...

HomeTroubleshootingTroubleshooting BasicsRepair ManualsOBD CodesOBD II CodesCar Won't StartAsk a MechanicSimple RepairsTypes of RepairsSpark PlugCar BatteryAlternatorBrakesTiresHeadlightsReplacement PartsRepair ToolsMajor RepairsHead GasketRadiatorAir ConAir BagsRepair CostsRepair ScamsAuto Repair ShopsMaintenanceMaintenance BasicsOil ChangeAir FilterFuel FilterCoolant FlushCar WashingBetter Sign in to add this video to a playlist. If you still have any unresolved vehicle problems or questions, you can ask an auto mechanic online. The EGR valve is closed when the engine is cold, at idle, or during hard acceleration.

NOx is one atom of Nitrogen combined with any number of Oxygen atoms hence the reason they use a 'x' after the O because it could be NO1, NO2, NO3…. you get the picture. Home For Used Car Buyers How to choose the 'right' car Reviews of popular used cars Best fuel efficient used cars Used car buying guide Illustrated used car checklist How Home For Used Car Buyers How to choose the 'right' car Reviews of popular used cars Best fuel efficient used cars Used car buying guide Illustrated used car checklist

This thread shows EGR system components in the 2.3L Ford Ranger. - The EGR valve could be sticking or the EGR passages could be restricted; both issues are very common. This motor has four winding phases. This code came a month ago and my mechanic has tested the EGR system and everything was working properly. Verify that the front Oxygen Sensor readings drop and the Short Term Fuel Trim increases when the EGR valve opens. (EGR leans out the mixture.) NoteIf the NOx goes down when

Loading... EGR stands for "exhaust gas recirculation". maqqqtube789 41,235 views 6:57 Ford P0401 DPFE EGR Pressure Sensor Diagnostics and Repair with a Contest - Duration: 5:34. An excessively-high combustion temperature is also harmful for the engine, as it may cause a detonation (pinging or spark knock), which in turn can result in blown head gasket and burned

Pay close attention to the DPFE readings and make sure that they are changing from a .5 to 1 range to a 3 to 4 voltage range when the EGR System Loading... Another bulletin for 1999-2002 Odyssey as well as some 2003 Honda Pilot models describes the same issue with the 3.5L V6 engine causing hesitation or surge during light acceleration with the Before replacing any parts try cleaning the EGR valve, tube and passages.

Tech notes EGR flow malfunction could be caused by a clogged EGR valve or EGR tube. Read more how the EGR system works below. The EGR sensor, whether it's a DPFE sensor, EGR temperature sensor or EGR boost sensor need to be checked too. The nitrogen oxides are formed as a result of the combustion in the engine cylinders.

How Exhaust Gas Recirculation (EGR) system works The Exhaust Gas Recirculation (EGR) system is a part of the vehicle emission control system. Honda/Acura: The code P0401 is common in Honda V6 engines. Exhaust Gas Recirculation. Sign in 247 73 Don't like this video?

A: Check the vacuum hoses at the VSV valve, check and clean the filter in the EGR vacuum modulator, check the EGR valve and passages for blockage, see if the vacuum The EGR valve needs to tested. Sign in to add this to Watch Later Add to Loading playlists... If you want to take it to a mechanic, have the diagnostic done at the dealer; they know common problems and have the latest repair information.

Ford uses a DPFE sensor (DPFE stands for Delta Pressure Feedback EGR) that measures the EGR flow based on the difference in pressure on both sides of the metered orifice in Check Engine light problems Check Engine light trouble codes Glossary of automotive terms More » Used Car Reviews Toyota Corolla 2009-2013 Mitsubishi Lancer 2008-2013 Chrysler PT Cruiser 2001-2010 BMW 3-series 2006-2011 Then open the EGR valve to its maximum—the manifold vacuum should drop by at least 3" of mercury. The exhaust gas recirculation (EGR) system recycles a small amount of exhaust gas from the exhaust system (usually no more than 10 percent) and mixes it with the intake manifold air

The EGR ports in the throttle body clog up very often too. What is to be replace or fixed?... The code again was P0401. You might notice the engine knocking or 'pinging' noise (detonation) or there could be no symptoms at all.

Sign in to make your opinion count. If a clogged catalytic converter is suspected, the exhaust back pressure needs to be checked. Recommended Tools for Diagnosing and Fixing OBD II CodesOBD II Scanner: Autel MaxiScan MS300 CAN Diagnostic Scan ToolCombustion Leak Tester: UView 560000 Combustion Leak TesterCompression Tester: Innova 3612 Compression TesterFuel Pressure A computer system in all modern cars has a self-diagnostic and reporting capability or what is known as the on-board diagnostic or OBD II.

There are generally three parts to the EGR system: the EGR valve, an actuator solenoid, and a differential pressure sensor EGR (DPFE). In summary NOx is bad news and the EGR system is one way of helping to eliminate these harmful emissions.Manufactures use different strategies to help monitor EGR output, one method is