Free catalytic converter check Parcel and attach our free postage label (Accepted at all UK Post Offices) We receive and check the catalyst then make payment to your bank account the same working day. Specification: 100% quality assurance tested, more responsive, less expensive, easier to install. Dec 12, 2023 · Is your catalytic converter going to fail check out our guide on catalytic converter failing. If your vehicle's catalytic converter is showing signs of wear or isn't functioning at its peak, selling it for scrap might be a good choice. These catalytic converters comply with the new regulations that became effective January 1, 2009. Check Converter Efficiency Codes Aug 24, 2016 · A very efficient way of testing a catalytic converter for efficiency, especially with a failure of emissions . When it comes to catalytic converters, there’s a lot of confusion about what’s legal, what’s durable, and what works best for your vehicle. When you download our app, performing a catalytic converter price lookup by serial number is easier than ever. This handy little invention was first patented in 1952; however, it didn't make its way into mainstream auto manufacturing until the Clean Air Act of 1970, which required all manufacturers to lower tailpipe emissions by a whopping 75 percent within five years! May 2, 2024 · Look for diagnostic trouble codes (DTCs) specifically related to the catalytic converter (commonly P0420 or P0430 codes). Oct 10, 2016 · Stop and go traffic on the way home from the mountain pass, my check engine light came on. I researched what needed to be done, and from everything I read it was a very expensive fix. Book free exhaust system and catalytic converter checks online for cars or vans, available at all UK Kwik Fit centres. Jan 29, 2024 · In this section, we will explore three different avenues you can explore to find free catalytic converter price guides. at Halfords UK Check out your buyers information page to learn more about the buyer that guarantees the pricing in your area. Prevent certain oil and excess fuel from entering the pipe. Oct 9, 2022 · Some OEM catalytic converters are priced over $1,000. Apr 13, 2023 · Metro Denver residents can get their hands on a free catalytic converter marking kit at a number of state-run events this month. Instead of just painting converters or doing a simple VIN etching, the program gave 10,000 Coloradans free devices that are chemically etched into the converters. We have over 20,000 individually sampled converters including their codes and pictures. Jun 6, 2024 · An essential part of lowering cars' toxic emissions is catalytic converters. Oct 31, 2016 · Issue #4: Damaged Catalytic Converter. Standard Motor Products replacement converter check valves are designed to exceed OEM specifications for dependable, maintenance-free operation Apr 12, 2024 · On the other hand, new catalytic converters are recommended over second-hand options due to safety concerns and potentially greater reliability and lifespan. We don’t take any fees or commissions from converter recycling transactions. Apr 11, 2017 · Yes and no. Check the state’s website for pickup dates and locations or Dec 25, 2023 · To quickly determine the scrap value of a catalytic converter by its serial number, use online databases or apps like Eco Cat, Ecotrade Group, or Cat DB. Dec 3, 2024 · CARB Compliant Catalytic Converter Versus Federal or OEM Converter. Feb 19, 2023 · How do I find my catalytic converter serial number? To find the serial number of your catalytic converter, you should look at the catalytic converter itself. Summary. The catalytic converter usually needs replacement at some point to permanently resolve P0420. Catalytic Price updates prices every hour and offers prices based on real ICP reports eliminating the fear of an unfair deal. Catalytic Price. Photos courtesy of Blair Lampe. com FREE DELIVERY possible on eligible purchases Oct 16, 2022 · This trick won't work if the lights not on. 5: Easy installation, direct bolt-on, no modification needed. Application: For Most Vehicle With M18X1. Replacing a stolen catalytic converter can cost an average of $1,000 to $3,000, creating financial hardship for vehicle owners. Search on marketplaces for used catalytic converters for sale. A full Mar 8, 2019 · Check out all the exhaust system parts available on NAPA Online or trust one of our 17,000 NAPA AutoCare locations for routine maintenance and repairs. There are many aspects to cause the CEL on, one aspect is catalytic problem. I little bit later, my fordpass app binged and notified, "The engine control system has detected that the catalytic converters efficiency is below an acceptable level. Aug 5, 2021 · Last month, in an effort to go even further, AAA Colorado and the Colorado Auto Theft Prevention Authority created the nation’s first-of-its-kind catalytic converter anti-theft program. com is an online database of catalytic converters based on XRF values. Jul 31, 2024 · An illuminated check engine light or malfunction indicator lamp (CEL or MIL) with a catalytic converter diagnostic trouble code (DTC) is the most common catalytic converter problem indicator. But sometimes, the CEL alert is caused by O2 sensor problem. At National Tyres and Autocare, we provide a FREE exhaust check at a branch local to you. Oct 15, 2024 · Guide for Testing a Catalytic Converter. First, check for signs of failure, like loss of power or odd smells. For Accurate Quotes on Scrap Catalytic Converters REQUEST A QUOTE Find Standard Motor Catalytic Converter Check Valves and get Free Shipping on Orders Over $109 at Summit Racing! Don't take chances with old, questionable, or faulty catalytic converter check valves that can cripple your vehicle's emissions system. Nevertheless, they do contain valuable metals; rhodium, palladium, and platinum being the most prevalent. You’ll have access to amazing features, such as over 15,000 codes, current PGM prices, and adjustable margins. In most cases of a clogged catalytic converter, the Check Engine Light will come on. Tacomas (2005-2015) Jan 29, 2024 · Oval catalytic converters, as the name suggests, have an elliptical or oval shape. 2. Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 280396. Cat DB is a tech company, we manage the app platform, converter database, and provide unbiased customer service (ie. Catalytic converter scrap prices can vary widely, from $300 up to $3,000, depending on the car's make and model. Jul 28, 2024 · To check a catalytic converter with a scan tool, first connect the scan tool to the vehicle’s diagnostic port. Sep 2, 2021 · Our price guide makes it easier than ever to find the value of your catalytic converter right when you need it. Check if there is a damage or disconnect to the wiring Mar 2, 2023 · The check engine light, one of the most obvious indicators of a malfunction with your car, is also one of the strongest indicators of a bad catalytic converter. 7. The California Air Resources Board, with assistance from aftermarket catalytic converter manufacturers, has been developing a database to store and retrieve information on aftermarket catalytic converters that have been approved for use in California. “Free Forever” plan includes 3x code or “no code” searches per day plus a bonus 3x vehicle or VIN searches per month. If you have any ideas or issues with the app, let us know by contacting us using the button below! ConverterDatabase. Newer cars have oxygen sensors that observe the effectiveness of the converter. Per their recommendation I bought a cat cleaner solution and dumped it into my 1/3 full tank. Despite their robustness, catalytic converters can encounter several issues that may impair their functionality, from simply setting a check engine light to causing a no-start condition or even stalling the engine as you drive. Oval catalytic converters are often used in larger vehicles or those with higher engine capacities. I got the code checked and it was something about the catalytic converter efficiency being low. However, with some research and patience (including referring to a free catalytic converter scrap price guide), you can find the best deals available. . If a faulty catalytic converter is replaced, but the check engine light remains on, there are several potential causes. That’s why have a range of free car checks to keep your vehicle working at its best. Plug the scan tool into the OBD-II port under the dash. Online Automotive Forums and Communities. We believe in demystifying the process of Catalytic Converter recycling with fair pricing and the tools to get more out of your precious metals. I was quoted $1200 to replace it in my 2016 Ford Fusion. free ground . Ensure engine is at Nov 28, 2024 · You can easily test your catalytic converter at home using a few straightforward methods. more. One of the easiest and most accessible ways to find free catalytic converter price guides is by joining online automotive forums and communities. Because a thief armed with a power saw can rip off your catalytic converter in less than a minute, the NAPA Network recommends adding theft prevention when you replace a catalytic converter. Nov 18, 2024 · Step 1: Check eligibility requirements and apply online . However, on old catalytic converters, this serial number can be difficult to find due to rust. Interpret the codes according to your vehicle’s manual to understand whether issues may be due to the catalytic converter. 05/lb: For info on obtaining your free catalytic converter etching kit, please visit our EVENTS page for the latest information. However, the subscribed account gives you access to a specific number or unlimited searches per day, but this depends on the subscription purchased. Jun 10, 2022 · With a variety of ranges you can always check out our price page to see what type of catalytic converter it is that you have. Aug 6, 2024 · The catalytic converter label and etching provides a visible identification number, making a catalytic converter traceable by law enforcement if it is removed from a vehicle. Exhausts and Catalytic Converters Book your free exhaust check at Kwik Fit. Because there’s an issue with the emissions system, the sensors will trigger a malfunction that causes the warning light to illuminate. Receive up to $500. During this exhaust check, our highly trained staff will check whether there are any issues with the exhaust system, including checking the catalytic converter. Built in micro catalytic converter, eliminate check Nov 28, 2024 · Check for any diagnostic trouble codes (DTCs) related to the catalytic converter, such as P0420 or P0430, which indicate efficiency issues. specifically a NOX (Oxides of Nitrogen failure). Now, meet this free catalytic converter price lookup app offering 40,000 catalytic converters in its store. Follow these tips: Know the Vehicle Details: The year, make, and model of the car often determine the converter type. The most common on Honda Accord with P0240 is the catalytic converter. 4: If the O2 sensor is too sensitive, the CEL will still open after loading the canceller, and all problems on the CEL alarm will not be resolved. AAA says the 'check engine' light may also come on and the driver may notice the vehicle does not drive as smoothly. This way, you’ll produce less harmful emissions whenever you drive. Warranty Considerations Under Interim California OBDII requirements, converters are designed for a longer life. Oct 24, 2023 · Conclusion on Aftermarket Catalytic Converters. #keepwrenching #wesselmotorworks #wrenchingwithkenny #whatarew Nov 28, 2024 · Catalytic converters commonly create contrasting temperatures. Check engine light on (probably the same P0420) about 6-7 months ago > This is called a stored code > It turned off by itself about 4-5 months ago (I didn't clear the code) > Check engine light was off because it was a little hiccup or the function of catalytic converter was barely above the threshold > Even though light turned off, there is Jan 7, 2025 · Current catalytic converter scrap prices from various buyers in the United States. When checked with a compatible OBD scanner, it will show you a catalytic converter-related trouble code that must be decoded with the help of the operating manual. Check if is a crack on your exhaust manifold. Aug 4, 2023 · How Do You Check Catalytic Converter Scrap Prices? There are a few ways to check the price of a catalytic converter: Browse recycling websites to find the scrap cat converter prices. We're constantly improving Cat Pricer and will continue to do so to remain the #1 Catalytic Converter pricing app on the market. Our database updates every 10 minutes to live market prices. Shop Ford F-250 Catalytic Converters. If you’re ready to equip your Chevy Silverado 2500 with a Free Exhaust Check. Check out our catalytic converter dealers directory to find your nearest catalytic converter scrap buyers. The No. When shopping, you’ll find several choices, such as a CARB compliant catalytic converter, Federal, or OEM converter. The names and types are for general reference, and your actual quote may vary. There’s really no better catalytic converter app on the market. *Free Shipping on Orders Over $119* My GF had her catalytic converter stolen last year, and insurance covered replacement etc. Learn more about our completely free Price Guide. Check the Honeycomb: Look into both ends of the catalytic converter to ensure the honeycomb is intact. Step 2: Use a Catalytic Converter Cleaner Tools Needed: Catalytic Converter Cleaner; Procedure: An illuminated check engine light on your dashboard can indicate a variety of different problems with your vehicle—including a failing catalytic converter. Get an exhaust repair near you today. Differentiating between catalytic converters can be tricky. ATC's Engine Performance instructor goes over with his students on how to properly check your vehicle's Catalytic Converter to make sure its running properly My 08 Suburban check engine light came on, and Autozone told me the code was for a dirty catalytic converter. Dec 13, 2024 · A Check Engine light may indicate catalytic converter issues, commonly triggered by diagnostic trouble codes like P0420 or P0430. Symptoms of catalytic converter failure include sluggish acceleration, unusual odors, and decreased fuel economy. MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 4651306 helps keep the check engine light off. However, thoroughly vet the quality and confirm CARB compliance to avoid performance or legal issues. (2018 Expy with 34k miles). Find a catalytic converter exempted for a California vehicle that is of the same make, model, and model year as the federal vehicle, except for the engine family. Search by year/make/model or VIN, plus 19,000+ cat listings including 2,750+ listings without a code (generics). This will work on any vehicle catalytic converter to install on a federal vehicle? A. Free exhaust check from Kwik Fit. Get access to thousands of codes and images with the largest catalytic converter database catalog ; Quickly find accurate data on converters with our easy-to-use search feature; Set your margins, take control, and have the power to determine your profits; Simplify your buying and selling process with our Purchase Order feature Two Converter Systems California does not provide for consolidating split converters and, as such, the replacement converter system must have the same number of converters as the OE system it replaces. Your vehicle’s catalytic converter helps cut down on air pollution by removing pollutants from your vehicle’s exhaust. However, the smog check dude is now failing the car because of a serial number issue or some other CARB related nonsense. A faulty EGR valve that isn’t replaced can result in problems with fuel efficiency, power, and acceleration. When searching for catalytic converter price lookup apps, you’ll quickly find that there’s only one that’s worth your investment. Apr 6, 2023 · How to Find the Best Prices for Free Catalytic Converter Scrap. Jun 25, 2024 · Catalytic Converter Replacement Overview. Sep 28, 2023 · Metals in the catalytic converter make it one of the most valuable parts of a car. How does it 4 days ago · Catalytic Converter Grade Guide Pictures & Brands of Types of Catalytic Converters Below we have pictures of the common types of catalytic converters. Look into our online database of scrap catalytic converters by car brands, based on XRF values. Mark your catalytic converter – Engraving or etching your catalytic converter with your vehicle identification number (VIN) or license plate number may deter theft. Next, compare the pre-catalytic converter and post-catalytic converter oxygen sensor readings. A catalytic converter is an important part of a vehicle’s exhaust system, designed to reduce the emissions produced by the engine. This design allows for a larger surface area compared to round converters, which can enhance the efficiency of the conversion process. Here you will find real scrap catalytic converter prices and pictures along with the buyer companies in your area with contact details to set the deal. Check Amazon or eBay indicating your car's year, make, and model or search Google for online prices. Feb 23, 2023 · Free catalytic converter theft prevention program offered in Tampa Bay area. Your exhaust and c Dec 15, 2022 · HOUSTON — The Houston Police Department is trying to prevent your catalytic converter from being stolen right out from under your vehicle. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. A significant difference Get a free muffler check and schedule exhaust or catalytic converter services at Monro. Luxury vehicles and hybrids command the highest prices, with some Toyota Prius converters bringing over $1,100 due to their high precious metal content. VIEW EVENTS. : 1986-1991 Catalytic Converter Injector Pipe Check Valve. And our CEL eliminator is one kind of small catalytic converter in front of the O2 sensor, so if your real catalytic converter is broken, the CEL eliminator can help you to reduce the toxic gas. Grow your business right at your fingertips with our search engine offering up-to-date prices and insight into your converter. That’s all! You can now use our price guide to determine the value of your catalytic converters. Then, use an infrared thermometer to measure the inlet and outlet temperatures; a difference of over 100°F can indicate a problem. Mar 2, 2021 · Buy OEMTOOLS 37263 Exhaust Back Pressure Tester/Gauge Kit, Exhaust Gauge Diagnoses Catalytic Converter Issues, Oxygen Sensor Adapter, psi/Bar Readings: Pressure & Vacuum Testers - Amazon. Damaged Catalytic Converter. 00 dollars in free smog diagnosis and repairs through the Consumer Assistance Program (CAP). Driving style i. Simply type in the serial number in the search engine or browse by manufacturer. For more information on how to diagnose a worn out catalytic converter, chat with a knowledgeable expert at your local NAPA AUTO PARTS store. Catalytic converter locks are unbreakable, heavy-duty wire cages. If you have a question on your cat, please send us an image through our contact form above. Send us a picture and the code from your catalytic converter to obtain a price quote. Look for a 5 to 12-digit/character serial number. 3: AVOID A CHECK ENGINE LIGHT,Catalytic converter built inside and will help get rid of that annoying check engine light. If you are at all concerned about the performance of your exhaust or catalytic converter or are experiencing loud or unusual noises coming from this area of your car, at Kwik Fit we will carry out a full, no-obligation, inspection to help diagnose any issues. Prices are updated daily. Faulty oxygen sensors can mimic a P0420 code, so replacing them may temporarily fix it. Feb 20, 2023 · Last updated on February 20th, 2023 at 08:41 am. Sep 11, 2007 · Needless to say, I returned this cat. Infrared thermometers provide a non-invasive method for measuring the temperature of exhaust components, offering advantages such as real-time monitoring and avoiding potential damage to the parts. This means that our assay information has been compiled over the last 1 ½ years, making it a very reliable source of information. The State of California Bureau of Automotive Repair can help repair your vehicle. The device should not be welded or attached directly to the catalytic converter. 1 catalytic converter pricing app. A catalytic converter can be worth anywhere from $50 to $1,500 when scrapped, with most car models falling between $150 and $300. " Chevrolet Silverado 2500 catalytic converters are designed to oxidize unburned hydrocarbons and carbon monoxide over a metal catalyst. Shop the latest Our expert technicians can provide you with a free exhaust check to find any issues on your vehicle. The scan tool will then read all of the data related to the catalytic converter, such as temperature levels, oxygen sensor readings […] Feb 21, 2024 · Another sign of a clogged catalytic converter is increased emissions. New mufflers include a lifetime warranty and a 30-day best-price guarantee. Some CARB-certified catalytic converters could cost twice as much. Jan 12, 2024 · Catalytic Converter Etching: Catalytic converter theft has sharply risen, with a 400% increase in thefts over the past 5 years in the US alone. Discussion in '2nd Gen. With this resource at hand, you can make informed decisions about whether to buy or sell scrap converters. When it comes to your vehicle’s emissions system, the catalytic converter plays a crucial role. Free of steel sides and no coolant inside. At Halfords, we’re here to keep you motoring for less. Product parameters: TRY OUR APP *FREE Global Refining Group’s database of catalytic converters consists of thousands of up-to-date assays. Better still, it's absolutely free. 3-year guarantee on new exhaust parts. It will read and display any diagnostic trouble codes stored for the various emissions monitors. You'll typically see the pre-catalytic converter temperature around 300°F, while the post-catalytic converter should ideally reach about 500°F. Keep the check engine light off with MagnaFlow Standard Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 23690. Jul 19, 2014 · Learn how to test for a clogged catalytic converter and what to do if you have one. The second option is to use a direct-fit aftermarket catalytic converter. $2. When it first came on I took my car to AutoZone and they plugged in their device and the report came back that it was most likely the catalytic converter. Infrared Thermometer for Catalytic Converter Testing. You will need some kind of scanner or code reader . Use a mobile app to take a picture of your cat converter and get a quote. Find out what your catalytic converters are really worth! Search by the number on the catalytic converter: My check engine light has been on for a few months. It may also alert a reputable scrap dealer that the device is stolen and can help to identify the Jul 14, 2023 · After downloading it, you can sign up and use the free account to check the price of one single catalytic converter per day. Sign up and get free access to catalyst prices. Jun 3, 2022 · COLORADO, USA — Colorado State Patrol is offering to etch a special serial number onto your catalytic converter for free, in an effort to help track it down if it gets stolen. But before you replace it check some things that could be happening and could save you money. If you find these codes, it's a strong sign your catalytic converter might be failing. Sep 30, 2024 · Catalytic converters are a component of your vehicle’s emission system installed in line with the exhaust system. I took it to a shop and they confirmed that. The failure could be the result of a lot of things. Check if there is a leak before the catalytic converter,like manifold gaskets. Then turn on the scan tool and select ‘catalytic converter’ from its menu options. e. When this component starts to fail, it can cause a check engine light to come on. Step 2: Once approved, select an approved repair facility to help you get back on the road faster | View Facility List > You pay $100 co-pay and the program pays up to $900 toward repairs and guarantees your vehicle will pass emissions testing. frequent short trips can shorten the converters life, Mar 27, 2024 · To get full-access, you need to register for a FREE account. We are adding newly sampled converters daily! Simply type in a portion of the code in the code in the search engine or browse by manufacturer of category. A healthy catalytic converter shows an 80°F difference between inlet and outlet, with the outlet being hotter. This component is responsible for converting harmful gases into less harmful substances before they are expelled from the vehicle’s exhaust system. By registering you get access to free price and photos of one catalyst each day. Engine noise? Low fuel efficiency?If you are at all concerned about the performance of your exhaust system or catalytic converter, or are experiencing loud or unusual noises coming from this area of your car, book an appointment online and our expert technicians will complete a free, no-obligation inspection of your Jan 7, 2023 · How To Tell The Catalytic Converter Is Clogged? 1. Hand-picked by experts! Pay later or over time with Affirm. Direct replacement, durable and have high strength to use. Get the right fit for a wide array of vehicles thanks to the adaptable Universal design (cutting and welding is required). How to Tell the Difference Between Catalytic Converters. The labels are free of charge to Maryland motorists and available on a first-come, first-served basis through the MVA. Tacoma Catalytic Converter & Check Engine Light. Outside a Walmart in northwest Houston, the Auto Theft Catalytic converter turning on check engine light So like the title the engine light is on in my 2012 honda crv. Check Engine Light. Price Guide So in this video I’m gonna show you the method that I use to check for a plugged or clogged catalytic converter , plugged cat. If you are looking for a catalytic converter price list scrap for popular car brands, or a free catalytic converter price guide that shows some of the cheapest to most expensive Cat scrap values; then you are in the right article. The Catalytic Converter Connections app provides accurate, up-to-date information on vehicle converter prices from industry scientists. 5 Threads. Current scrap catalytic converter prices are determined considering the valuable elements within your used catalytic converters, estimated through the recycling process, ensuring a hassle-free deal. Nov 13, 2023 · My check engine light went on, so I went to AutoZone and they used one of those code readers, the code came up as a bad Catalytic Converter. The CAP Repair Assistance program is designed to help low-income consumers bring their vehicles into compliance with California emission standards. These prices are market indicators only, actual prices may vary depending on your item. *All parcels are insured whilst in transit, for more information please ask. 1 day ago · Check the current scrap catalytic converter prices from Rockaway Recycling. Finding the best prices for free catalytic converter scrap can be a challenge. To sum up, a catalytic converter is an essential component of your vehicle, playing a crucial role in reducing harmful emissions and contributing to a cleaner environment. VIEW METAL DETAILS. Ran it until just about empty and filled it up again. This is where your engine's fumes (carbon monoxide, nitrous oxide, and hydrocarbons) go to be converted into water and carbon dioxide. Install the catalytic converter on the federal vehicle and make a note on your invoice and warranty card Jan 30, 2024 · P0420 indicates your vehicle’s catalytic converter efficiency has dropped below the threshold, reducing emissions control. Catalytic convertors can last a long time but failure is not as uncommon as the google results have led you to believe. The value can range from $50 to $250, or more for certain models containing precious metals like platinum, palladium, and rhodium. Enjoy 30 days of brows… In most cases, a catalytic converter replacement is needed. Aftermarket catalytic converters offer convenient availability and upfront cost savings that should not be ignored. A faulty EGR valve can activate your vehicle’s check engine light. Oct 25, 2023 · One of the fastest ways to check for catalytic converter issues is using an onboard diagnostics (OBD-II) scanner: Retrieve Diagnostic Trouble Codes. If fright night rolled around, no one egged your house, and you still smell rotten eggs, you might have a busted catalytic converter, notes CarsDirect. This is because a clogged catalytic converter can’t effectively convert harmful pollutants into less harmful gases, which can lead to higher emissions. 1. If your car’s emissions are higher than usual, it could be a sign that the catalytic converter isn’t working properly. Check Engine Light: The most popular, and easiest way to tell if the catalytic converter is bad is a check engine light warning with the trouble codes P0420 or P0430. The high scrap value of these precious metals has made them easy prey for criminals. For older models, expect Corvette Catalytic Converters Corvette Catalytic Converter Injector Pipe Check Valve. free photo-grading). Here are some tips to help you get started: Accurate catalogue of catalytic converters CATALYTIC CONVERTER RECYCLING. We have over 4,735! individually sampled converters including their serial numbers. If push comes to shove, I will buy either the Walker 16489 Ultra Direct Fit Catalytic Converter, or the MagnaFlow 49217 Large Stainless Steel Direct Fit Catalytic Converter, since I already have another Magnaflow direct fit on the driver's side. It also makes your pickup street-legal in areas that have strict emission laws. rzeq ssp cprizms zaczp mpkydfsz lzxdwbx yhlf kycngp ktim bnsw