How To Replace Oxygen Sensor Toyota Camry 2003
This article applies to the Toyota Camry (1997-2011). Your vehicle’s oxygen sensor measures the oxygen content in the exhaust and adjusts engine parameters like air-to-fuel ratio (AFR) to keep it running at its best. However, the exhaust is (in essence) hot and dirty, so the sensor can wear out over time. Generally speaking, the lifespan of the sensors can be up to 100,000 miles. Therefore, as your vehicle ages, it is increasingly common for the O2 sensor to work inefficiently on your vehicle. Code P0125 or P1335 means you have a bad O2 sensor. Since a faulty sensor can affect your fuel efficiency by 15% to 25%, you should replace your sensor when it fails.
Step 1 – Prepare to replace your O2 sensor
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Let the vehicle cool for a few hours before replacing the O2 sensor. The engine area where you will be working heats up quickly and remains hot long after you turn off the engine. The longer the engine cools down before replacing the O2 sensor, the less likely you are to burn yourself.
Step 2 – Open the hood and locate the sensor
Read more: Instant Snow Removal Open the hood and use the roof rails to secure it in place.
Figure 1. Camry four-cylinder engine with sensor circled. Locate the catalytic converter, then find two sensors (they look like thick black wires) connected to it. There is one (sensor 1) in front of the catalytic converter and a second (sensor 2) located behind and below the catalytic converter. Make sure to replace the correct sensor (ie the sensor is faulty). To make sure you’ve done so, consider testing each sensor with a multimeter by connecting each sensor in turn to a multimeter (set to 200 ohms) to see if the sensor “works”. moving” or not.
Figure 2. Locate the defective O2 sensor to replace it.- Figure 3. Using a multimeter to verify that the O2 sensor is faulty or has failed.
Figure 2. Locate the defective O2 sensor to replace it.
Figure 3. Using a multimeter to verify that the O2 sensor is faulty or has failed.Featured video: How to test O2 . sensor
Step 3 – Disconnect the O2 sensor from the connector
Follow the “wire” from the O2 sensor to the connector. At the connector, insert a finger or two behind the connector and press on the tab, while pulling up on the connector. It will easily pop out of place.
Figure 4. Stick one or two fingers on the back of the connector and press on the tab, while pulling up on the connector.
Step 4 – Remove the O2 . sensor
Read more: How to tell if someone is Italian Use the O2 sensor socket to remove the O2 sensor. To do so, slide the “wire” into the slot on the O2 socket and then push the socket down until it covers the O2 sensor. Once done, attach the ratchet to the O2 sensor, which you will use to loosen and finally remove the sensor. If your engine is getting hot or to make sure you don’t accidentally get burned, put on a welder glove on one hand and then use that hand to actually remove the O2 sensor once you’ve almost turned it off with the O2 socket. and toad cake.
Figure 5. Slide the O2 socket over the wire so that it fits snugly into the internal socket.- Figure 6. Slide the O2 socket down the wire until it fits the sensor. Then, attach the ratchet to the O2 socket.
- Figure 7. Using the O2 socket and ratchet to loosen the O2 sensor. Then remove it.
Figure 5. Slide the O2 socket over the wire so that it fits snugly into the internal socket.
Figure 6. Slide the O2 socket down the wire until it fits the sensor. Then, attach the ratchet to the O2 socket.
Figure 7. Using the O2 socket and ratchet to loosen the O2 sensor. Then remove it.Step 5 – Add anti-seize feature on threads of new O2 sensor
Rub a little anticonvulsant (maybe included with your new O2 sensor) on the threads of the new O2 sensor. This will make it easier to remove the newer O2 sensor if needed at some point in the future.
Figure 8. Adding anti-seize to the threads of the new O2 sensor (without any effect on the sensor itself) to make it easier to remove it at some future time.
Step 6 – Replace O2 . Sensor
Replace is the opposite of remove: Read more: how to get big boss repo
- Position the O2 sensor, thread it into the hole and tighten by hand until you can’t tighten any more.
- Use O2 socket and ratchet to tighten into place.
- Reconnect the O2 sensor to the connector by snapping it into place.
- Finally, close the hood.
Featured video: How to remove/replace the O2 . sensor
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