Bests & Worsts Reviews from Amazon

Before you purchase the VSV, there is a way to test yours if you can get your hands on it. Supply power to the VSV, such as using a 9V battery, + to one of the electrical connector, and - to the other. You should hear a click sound on a working VSV. Ok, also, be very careful under you vehicle, always work with jack stands, never just the floor jack. Even better, use a ramp, plus jack stands as backup. When under you vehicle, very rare do you come away from an accident to learn from your mistake! Now, on to the review. 00' Corolla LE was throwing a P0446 code (EVAP) and I researched to see what it could be, there was a rare chance it could be the gas cover, so I purchased a replacement to see if it corrected the error code. Nope, didn't work. After further researching, I traced it to a possible VSV especially by the charcoal canister in the back. An OEM Toyota replacement was $70-80 and I wasn't sure if it was a definite fix. I found this Dorman 911-601 as a replacement. My mechanic at the shop said it could be up to $600 or so, this would include the charcoal canister and other parts as well. For a little over $20, I would take a chance. Plus, I needed to take care of this because the car wouldn't pass once emissions testing is due. If it weren't for the testing, I wouldn't deal with it. Before I go on with my experience, do yourself a big favor, go under your vehicle and evaluate if you can confidently reach and replace the VSV on your own vehicle. Sometimes the location of the VSV makes it near impossible to replace on vehicles. First, on my Corolla, this part was not an exact matching fit. The ports as shown here on Amazon face both directions, one on the side of the electrical connector and the other port opposite the connector. Underneath my car, I can see the VSV, both ports face opposite the electrical connector. Still, I can make it fit. Second, replacing this VSV as a DIY'er on paper is simple, unscrew the VSV via single screw, unplug electrical connector, unplug the vacuum tubes from the ports. Install new VSV and replug everything. That's all there is. In reality, it is one of the most difficult replacements I've seen. I have slim fingers and even I had to have a lot of patience as I replaced the part. As I said, the VSV is underneath the vehicle, in the way of replacement are various hoses around the charcoal canister. The screw that holds the VSV? Forget about it, on mine it was totally rusted, I had to pry and break the old VSV off. When underneath, wear safety goggles, that is a must, or else every rust or dirt falling down may end up in eyes. Once I removed the old VSV, I put the new and had to use a new hose, remember the opposite facing ports? Due to this, one hose was too short to connect on the Dorman. The hose I used was a Prestone FU0104, it comes in 2 feet. Basically, it's a fuel line/emission rubber hose, 1/4" or 6.4mm inside diameter, you can use any other hose that meet the criteria, and you can buy by the foot. I used about 12-14". It's thicker than the original hose that was under there. I just replaced the VSV and wrote this review. I'll update whether it fixes my code but I won't change my rating, I'm taking a chance with the item, not the fault of the item if my code comes back. EDIT 6/24/13: Just checked today with my auto scanner and all monitors are showing 'ok' readings. Even the EVAP. That is the one that was affected by the P0446 code. It is a monitor that takes a bit to register 'ok'. I'll keep an eye on it of course to see if the code stays off because I've seen it pop back on in the past with the original VSV, prior to this replacement. Please click YES if my review have been helpful to you, it will encourage me to continue writing and updating my reviews, and leave a comment if you have any questions, I will be more than happy to answer if I can be of help.