P0401 Code on a 2001 Toyota Camry 2.2 - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 07-25-2009, 01:28 AM
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P0401 Code on a 2001 Toyota Camry 2.2

Hello All,

Just got this code about a week ago. Did a search on here to troubleshoot either the VSV or the EGR valve itself. Before I look into this. Anyone know where these parts are located? I noticed when I did a search I did not really see a description of a 2001. Mostly 96 to 99. Are they the same? Pictures would be great.

Thanks in advance

2001 Toyota Camry CE (Daily Beater)
2000 Regal GSX
1994 Yukon GT
1986 Grand National
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#2 Old 07-25-2009, 09:13 AM
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Here you go. On the firewall right behind the number 2200 is the Egr modulator - round object with red writing on top, the next round object to its right with the green writing on it is the EGR valve. Do a search on EGR valves and you'll get a ton of info. The Egr valve can be cleaned if it is clogged and replaced. The VSV is located on the backside of the engine down below these valves and is a pain to access.

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#3 Old 07-25-2009, 10:21 AM
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finfinder thank you for the pic. That really helps alot. Much appreciated.

2001 Toyota Camry CE (Daily Beater)
2000 Regal GSX
1994 Yukon GT
1986 Grand National
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#4 Old 07-25-2009, 12:18 PM
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No prob. FYI here's a few pics I posted a while back showing what my carbon deposit clogged EGR valve looked like at 225K miles. This is what was causing my cel code P0401. I also replaced the VSV and the modulator for good measure, problem solved.
This is common on the 2.2 with high miles. I learned about the EGR from this site.
Toyotanation FTW!






Last edited by finfinder; 07-25-2009 at 12:32 PM.
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#5 Old 07-26-2009, 01:39 AM
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Wow. Never knew it could get that much carbon build up. My Camry is about 103K. I am hoping that it just needs cleaning. Again thanks for your assistance. ToyotaNation FTW. Thanks

2001 Toyota Camry CE (Daily Beater)
2000 Regal GSX
1994 Yukon GT
1986 Grand National
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#6 Old 07-26-2009, 03:52 PM
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http://www.toyodiy.com/parts/p_U_200....html?hl=25620

From ToyotaPartSales.com

Mechanical Catalog
Item Number MSRP Core Price Price
2562074330 $183.74 $0.00 $143.60
Emission system - Egr system - Egr valve
Egr valve, camry, 2.2l, auto trans 1997 - 2001

From AutoZone

Part Number:
EGR4160

Price:
$148.99

Application:
With automatic transmission
Warranty:

2 YR
Notes:

O.E.M. #25620-74330
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#7 Old 07-27-2009, 12:38 AM
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Quote:
Originally Posted by BamZipPow View Post
http://www.toyodiy.com/parts/p_U_200....html?hl=25620

From ToyotaPartSales.com

Mechanical Catalog
Item Number MSRP Core Price Price
2562074330 $183.74 $0.00 $143.60
Emission system - Egr system - Egr valve
Egr valve, camry, 2.2l, auto trans 1997 - 2001

From AutoZone

Part Number:
EGR4160

Price:
$148.99

Application:
With automatic transmission
Warranty:

2 YR
Notes:

O.E.M. #25620-74330
Thanks! What would be the best solvent to clean out this mess?

2001 Toyota Camry CE (Daily Beater)
2000 Regal GSX
1994 Yukon GT
1986 Grand National

Last edited by xtremexnyc; 07-27-2009 at 12:42 AM. Reason: additional comments
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#8 Old 07-27-2009, 08:55 AM
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My friend with a 2000 camry I4 with ~85K miles had the same code, we cleaned the EGR valve and modulator and even did the vacuum gauge tests and all the tests in the repair manual that it all passed, but the code just came back. So then we took off the VSV and tested it according to the repair manual and it passed the tests. But the problem was still there and since it was the least expensive part to replace, we replaced it. After that the problem never came back, which was really frustrating because we did all the tests in the repair manual that passed as being okay, but it just turned out to be the VSV. So if it turns out that the EGR cleaning doesn't do the trick, try replacing the VSV.


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Last edited by DxElite; 07-27-2009 at 08:58 AM.
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#9 Old 07-27-2009, 06:54 PM
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Actually, the modulator is the least expensive part to replace. I bought a brand new OEM one at Autozone for 35 bucks , the VSV cost me about 65-80 from Rock Auto. A new EGR is about 200 bucks from the dealer.

Generally, it seems the VSV is the most likely P0401 culprit, followed by the EGR valve if the car has high mileage, and third the modulator.

Last edited by finfinder; 07-27-2009 at 07:00 PM.
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#10 Old 07-27-2009, 11:56 PM
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Quote:
Originally Posted by finfinder View Post
Actually, the modulator is the least expensive part to replace. I bought a brand new OEM one at Autozone for 35 bucks , the VSV cost me about 65-80 from Rock Auto. A new EGR is about 200 bucks from the dealer.

Generally, it seems the VSV is the most likely P0401 culprit, followed by the EGR valve if the car has high mileage, and third the modulator.
Would you happen to know if this is the correct part on rock auto?

STANDARD MOTOR PRODUCTS Part # VS54 More Info {Intermotor}
Egr Vacuum Solenoid

Thanks

2001 Toyota Camry CE (Daily Beater)
2000 Regal GSX
1994 Yukon GT
1986 Grand National

Last edited by xtremexnyc; 07-28-2009 at 12:04 AM. Reason: update
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#11 Old 07-28-2009, 12:18 PM
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I'd go to toyodiy.com and put in the vin number for your car, that will get you the original toyota part #, then you can call Rockauto and ask if their part replaces the toyota part # you got from toyodiy.com.

If that doesn't work email garrickwholesale@yahoo.com with your vin and Reed Bowman will hook you up with original Toyota parts at a discount.

Last edited by finfinder; 07-28-2009 at 09:23 PM.
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#12 Old 07-28-2009, 02:23 PM
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Quote:
Originally Posted by finfinder View Post
I'd go to toyodiy.com and put in the vin number for your car, that will get you the original toyota part #, then you can call Rockauto and ask if their part replaces the toyota part # you got from toyodiy.com.

If that doesn't work email garrickwholesale@yahoo.com wiht your vin and Reed Bowman will hook you up with original Toyota parts at a discount.
I can vouch for Reed, I bought all the EGR parts off him and saved a bundle compared what they wanted me to pay up here in Toronto! All of the parts were brand new OEM too!
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#13 Old 01-10-2010, 03:01 PM
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Finfinder - great info and pics, thanks. How did you get to the EGR pipe to actually remove the EGR valve from the engine? I have a '96 2.2L and after getting the two nuts off easily, I can't get a wrench on either end of the pipe to disconnect it. I noticed from your pics that you must have got to the end of the pipe that attaches to the engine. I have the P0401 code and the engine suddenly started running like it was on 3 cylinders. Thanks for any advice.
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#14 Old 02-26-2013, 10:22 PM
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What does the vsv look like?

I've had this same code appear for my 2001 Toyota Camry. Does anyone have pictures or a general set of instructions on how to locate it? Any help would be greatly appreciated.
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#15 Old 02-27-2013, 02:11 AM
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How many miles does your car have? Do you got an I4 or v6?

Its usually either your modulator, egr valve needs to be replaces or the vsv to your egr. Check your modulator first. Pull the cap off with a thin flat head. If the filter is crust chances are your modulator is bad. p0401 is complicated.

Here you go bro DIY: 1MZ, EGR, code P0401 & P0402 diagnostic & repair

This should give you some more info. Also go on the search and put p0401..
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