Question about 1998 Toyota Camry

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OBD code 0401 (1997 Toyota Camry 4 cyl)

I have a 1997 Toyota Camry 4 cyl. Check engine light came on . OBD code 0401. I have changed the EGR valve and the EGR Vacuum switching valve. I cleared the codea after each repair and again check engine light comes on with OBD code 0401. Any idea to what might be the problem ?

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  • Anonymous Mar 27, 2014

    check engine light on and displayed this code which indicates EGR flow/valve sensor having to do with the exhaust

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There is a VSV (vacuum switching valve) , usually mounted on the back side of engine block, under the intake manifold, as well as the map sensor, that can also cause that code if one or the other is faulty. It takes some pretty detailed troubleshooting to confirm this in some cases, so if that's not in your line of work, you may have to have it properly diagnosed, or take a 50/50 shot at which one first.

Posted on Jan 24, 2009

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The O2 SENSOR in the Cad. converter could also be causing that error

Posted on Jan 24, 2009

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1 Answer

P0402 1997 Toyota Camry 4 cyclinder 4 door, encountered P0402 has 3 months already. The car is drivable. What is the solution? Could replacement of a vsv value resolve this issue? Which part can I buy


Hi,
That is the code for Exhaust Gas Recirculation Flow (EGR) Excessive Detected

Read more at: http://www.obd-codes.com/p0402
Copyright OBD-Codes.com

Go to the site and review what causes and can be checked to fix it.

I'd start w/cleaning the EGR valve - free fix - and then consider replacing the part. I'd look for USED parts @ a local Salvage/Wrecking yard vs. buying new, due the cost and the fact that this is an older car.

GL,
TD

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A common problem for egr failures are the modulator valves, the valve is attached directly to the egr valve, it's a round plastic housing with three vacuum lines on it, try replacing this valve.

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2000 toyota camry code p0401 change egr valve light came back on. Check for possible soulution. I'm having trouble locating the EGR Pressure Sensor (DPFE) at stores. Is there another name for this part...


First did you reset the computer after replacing the EGR valve if you don't the computer doe'nt reconize the new sensor so it doe'nt reset the peremiters.Then check all passages and lines in the intake manifold there could be a clogg somewhere.Go to www.rockauto.com and you'll find EGR pressure sensor for under $30.00.

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What's wrong with the code P0401 for camry 96


P0401 OBD-II Trouble Code
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 (DPF). 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.

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Where is the EGR sensor located on a 1998 ford contour se


It's a valve not a sensor.
Where? it depends what engine do you have 4 cyl 6 cyl?
How do you know the EGR valve could be bad? check engine light on? OBD code? diagnostic made?
Help us to help you please provide more information
Hope it will help
Dan

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how I change the EGR valve assist switch for toyota camry 2000

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94 camry engine light on, code 71, how do i fix it


Go to Autozone and have your current EGR Valve, removed from the car, tested and they will determine if it is defective. They tested 2 for me, and neither was a replace, just a clean and they worked great. If they don't have a brand that suits your wants, just test it, then buy the new somewhere else, no commitment to buy.
The most common problem with these EGR valves is they get plugged up from carbon build up. Best way to test it is with a little hand held vacuum pump. Hook it up to the EGR valve and with the engine running at idle and squeeze the vacc pump handle a couple times to open the EGR valve. That should kill the engine. If it dosent, the EGR valve is probably plugged up. At that point you'll have to take it off and clean the carbon out. Even if you have your mechanic check into it, it shouldnt be that expensive to remove it and clean it out or replace it.

Good Luck and hope this helps: Oh and I think theres two EGR.. check the one on the bottom of the engine to. I am not sure but i think there are two EGR valves on your camery.  

May 05, 2009 | 1995 Toyota Camry

1 Answer

TOYOTA camry 2000, 2.2 L check engine light on, P 0401code


hello, to fix this problem what you need to do is replace your egr valve its a pretty straight forward replacement ,to get a new one goto any auto parts store and tell them what you need thay all carry egr valvs in stock cost is about 30.00$

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1 Answer

1995 Toyota Camry - Code 71 - failed emissions tests


replace the EGR switching valve and have the machanic clear the engine check light. I think it should help



Mar 25, 2009 | 1995 Toyota Camry

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