Replace an Oxygen Sensor Most oxygen sensors screw into the exhaust pipe. When it’s time to replace an oxygen sensor, you’ll need an oxygen sensor socket. Some oxygen sensors screw into the exhaust pipe. But air/fuel ratio sensors usually bolt onto the exhaust manifold. Many DIYers refer to them as oxygen sensors. Here are the instructions for removing screw-in style oxygen sensors. Buy or rent an oxygen sensor socket set Oxygen sensor sockets are special tools that allow you to easily replace an oxygen sensor, even if you’re working in … Read More

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