How do you replace the LS400 sub oxygen sensor?
Then push the rubber grommet through so it is hanging from the oxygen sensor. 5) Unscrew the RH sub oxygen sensor using a 22mm or 7/8″ wrench. If your sensors are original it will probably take a little extra elbow grease to get them out. 6) Repeat steps 3-5 for the LH sub oxygen sensor.
How big is the sensor on a Lexus LS400?
The finished product needs to be at least as long as the OEM sensor (10.5″ inches) or slightly longer. Mine ended up being about 12″ inches in length. 6) Crimp the 4 butt connectors to wires on the harness. Then, one by one, slide the heat shrink tube over a wire and crimp the wire from the sensor to the same colored wire on the harness.
Can a bad O2 sensor be replaced in a Lexus?
Replacing a bad O2 sensor is a straightforward process that anyone with some time and the right tools can do. Learn how to perform this common repair with this step-by-step walkthrough. This article applies to the Lexus IS 250/IS 350 (2005-2014). The oxygen sensors in your Lexus play a very important role in how your car operates.
How do you replace a walker oxygen sensor?
The Walker sensor comes with the sensor, butt-connectors, heat shrink tubing, high-temp antiseize, and instructions. 7) Squeeze this clamp to open it up so the wires can slide inside the wire cover. 8) Cut the wire cover towards the base of the oxygen sensor. Then cut the other end of the wire cover lengthwise. Now slide the wires out.
Then push the rubber grommet through so it is hanging from the oxygen sensor. 5) Unscrew the RH sub oxygen sensor using a 22mm or 7/8″ wrench. If your sensors are original it will probably take a little extra elbow grease to get them out. 6) Repeat steps 3-5 for the LH sub oxygen sensor.
The finished product needs to be at least as long as the OEM sensor (10.5″ inches) or slightly longer. Mine ended up being about 12″ inches in length. 6) Crimp the 4 butt connectors to wires on the harness. Then, one by one, slide the heat shrink tube over a wire and crimp the wire from the sensor to the same colored wire on the harness.
What’s the best way to change an O2 sensor?
Unplug the wire at the connector and remove O2 sensor. They do sell a special tool, but you can do it with a crescent wrench. Use some liquid wrench first. Apply anti-seize to the threads of the new O2 sensor for ease of installation and reconnect the wire.
Where are the oxygen sensors on a Lexus?
The Lexus will have a bank 1 and a bank 2 O2 sensor: one is near the firewall and in front of the catalytic converter; the other is behind the converter closer to the rear. They should primarily be the same part, just different lengths of wiring. The bulb part is connected to the exhaust. Figure 1. Location of the oxygen sensors.