If you're experiencing engine misfires, poor fuel economy, or a check engine light that won't go away, it might be time to replace your oxygen sensor. Specifically, the 350-34699 oxygen sensor is a common culprit that can cause these issues. But before you start the replacement process, it's important to have the right tools on hand.

Here are the tools you'll need to replace an advanced 350-34699 oxygen sensor:

1. Oxygen sensor socket: This specialized socket is designed to fit over the oxygen sensor and allow you to remove it without damaging the wires or connections.

2. Wrench or ratchet: Depending on the location of your oxygen sensor, you may need a wrench or ratchet to loosen and remove it.

3. Penetrating oil: If your oxygen sensor is rusted or stuck in place, penetrating oil can help loosen it up and make it easier to remove.

4. Wire brush: Before installing your new oxygen sensor, it's important to clean the threads and connections with a wire brush to ensure a good connection.

5. Anti-seize compound: Applying a small amount of anti-seize compound to the threads of your new oxygen sensor can help prevent it from seizing in place and make future replacements easier.

6. Jack stands or ramps: Depending on the location of your oxygen sensor, you may need to raise your vehicle off the ground to access it safely.

7. Safety glasses and gloves: Whenever you're working on your vehicle, it's important to protect your eyes and hands with safety glasses and gloves.

8. Replacement oxygen sensor: Of course, you'll need a new oxygen sensor to replace the old one. Make sure to purchase the correct model for your vehicle.

9. O2 sensor thread chaser or tap: In case the threads in the exhaust pipe are damaged or rusted, an O2 sensor thread chaser or tap can be used to clean them up before installing the new sensor.

10. A multimeter or scan tool: After installing the new oxygen sensor, you'll need to check its readings with a multimeter or scan tool to ensure that it's functioning properly.

By having these tools on hand, you'll be well-prepared to replace an advanced 350-34699 oxygen sensor and get your vehicle running smoothly again. Just remember to take your time, follow all safety precautions, and double-check your work before starting your engine.