# P0441 & P0455 Trouble Codes on 2007 Toyota Corolla CE **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [November 10, 2014, 12:43pm UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026 "2014-11-10T12:43:00Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Marky-B](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/marky-b/32/736_2.png) [@Marky-B](https://community.cartalk.com/u/Marky-B)\ **Post date:** [November 10, 2014, 12:43pm UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/1 "2014-11-10T12:43:00Z")
I’ve been having P0441 & P0455 codes showing up on my 2007 Corolla CE. My code reader tells me the areas that need checked. But, I can’t find the vacuum switching valve on it so that I can check it for problems. Somebody said it’s under the hood, but I can’t seem to locate it. Is is possible that it’s mounted on the vapor canister (which I have located above the rear axle)? Thank you. Mark B Handler ---
**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\ **Post date:** [November 10, 2014, 6:20pm UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/2 "2014-11-10T18:20:03Z")
There are many emissions components that can throw those codes. I checked a couple of Toyota owner’s sites and the common problems were loose/bad gas caps, purge VSV and holes or cracks in the purge hose. I believe the emissions components are still under warranty for 8 years so you might want to call a Toyota dealer and find out. It’s always better to spend their money and not yours. You can google “Toyota purge VSV” and there are a lot of different locations listed that might help. ---
**Author:** ![knfenimore](https://avatars.discourse-cdn.com/v4/letter/k/9fc348/32.png) [@knfenimore](https://community.cartalk.com/u/knfenimore)\ **Post date:** [November 10, 2014, 11:50pm UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/3 "2014-11-10T23:50:52Z")
There was a bad batch of main engine computers on that model that would incorrectly control what is called a “purge valve” on the fuel vapor system. If the car has less than 80,000 miles, it’s covered by a federal warranty through the Toyota dealer, and it’s free. T.S.B. # EGO41-07. As long as the valve itself is working correctly (step #1), the computer gets replaced (step #2). I hope it’s got less than 80K, or else this fix gets really pricey out of pocket, provided it’s not a faulty gas cap or an intermittent issue with the vapor lines and components. Read more at: [http://www.obd-codes.com/forums/viewtopic.php?f=12&t=5539](http://www.obd-codes.com/forums/viewtopic.php?f=12&t=5539) ---
**Author:** ![Marky-B](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/marky-b/32/736_2.png) [@Marky-B](https://community.cartalk.com/u/Marky-B)\ **Post date:** [November 11, 2014, 12:25am UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/4 "2014-11-11T00:25:10Z")
This car has close to 140,000 on it. But, I need to know where the VSV is so that I can check it (myself). I’ve been told that the VSV is under the hood. I can’t find it. Or is it on the vapor cannister? ---
**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\ **Post date:** [November 11, 2014, 1:01am UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/5 "2014-11-11T01:01:49Z")
This is the only genuine Toyota vacuum switching valve (VSV) that I could find. I would assume that they all look pretty much the same. The one on my wife’s '07 Nissan Sentra looks just like it. Hope this helps. ---
**Author:** ![circuitsmith](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/circuitsmith/32/40376_2.png) [@circuitsmith](https://community.cartalk.com/u/circuitsmith)\ **Post date:** [November 11, 2014, 4:51am UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/6 "2014-11-11T04:51:17Z")
Under the hood, driver’s side. One of the hoses goes to the intake manifold. Only other vacuum hoses are to brake booster and PCV valve. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [November 11, 2014, 12:05pm UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/7 "2014-11-11T12:05:34Z")
See if this link helps > **[P0441 & P0455 Trouble Codes on 2007 Toyota Corolla CE](http://community.cartalk.com/discussion/2301208/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce#latest)** > > I’ve been having P0441 & P0455 codes showing up on my 2007 Corolla CE. My code reader tells me the areas that need checked. But, I can’t find the vacuum switching valve on it so that I can check it for problems. Somebody said it’s under the hood,... ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [November 11, 2014, 10:48pm UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/8 "2014-11-11T22:48:57Z")
mountainbike you are too funny! That link directs us back to this exact discussion! ---
**Author:** ![jesmed1](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/jesmed1/32/2097_2.png) [@jesmed1](https://community.cartalk.com/u/jesmed1)\ **Post date:** [November 11, 2014, 10:56pm UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/9 "2014-11-11T22:56:37Z")
@mountainbike, no that link definitely won’t help. 😉 ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [November 12, 2014, 3:11am UTC](https://community.cartalk.com/t/p0441-p0455-trouble-codes-on-2007-toyota-corolla-ce/88026/10 "2014-11-12T03:11:39Z")
Oops! I meant this link, with the exploded view diagrams… duh! [http://www.toyotapartsoverstock.com/default.aspx](http://www.toyotapartsoverstock.com/default.aspx)