Please make sure the OE numbers matches the part you are replacing. Please be very careful to check our photos, make sure the photo showed is same as you wanted. This parts was tested and passed for working well. Clean all of engine fuel tank and fuel hose. Please install carefully to ensure the sealing ring will not be damaged. Please check and tell to car repair shop above mentions. We pursuit 100% customers satisfaction guarantee. The service for the customers is the most important to us. So glad to have more choice to serve you. Common problems for customers. Is this accessory new? A: We are manufacturers, so each product can be guaranteed to be a new product assembled in person. How can I be sure the correct injector for my vehicle? A: There is the model number on the injector body, please check or take a photo and send it to us. What if I can’t use it? A: If you can’t install successfully, there is no reason to return the replacement.