An O2 sensor unscrews just like a spark plug.
There should be plugs where you unplug your old o2 sensor plug at. If you havent done that then just follow the wire from the plug.
The plug is on the outside of the frame.
Most of the time it is just: remove the connection to the O2 sensor, screw out the old O2 sensor, screw in the NEW O2 sensor, re-make connection to the O2 sensor. Note that some O2 sensors do not have plugs and you have to cut the wire and use crimp connectors to attach the new O2 sensor. If yours has a plug, you're in luck. Note that if the package includes a tube of silicone grease, make certain that you use it to protect the connections from corrosion. One of the hardest problems is taking out the old O^2 sensor. They have been in so long that they sometimes become seized in the port. You might have to resort to penetrating oil, heating torch, or a long bar & muscle to get the sensor out. The new sensor should have a little anti-seize on the threads to prevent getting stuck in the port.
bad connection to O2 sensor, or dirty/bad O2 sensor.... clean or replace with new
If you are replacing an O2 sensor with a new one, disconnect the electrical plug from the vehicle harness, cut the wires off at the old O2 sensor, slip a 7/8" box wrench over the O2 sensor and remove it by turning it counterclockwise. Install the new O2 sensor using a 7/8" open end wrench, tighten it as you would a spark plug, reconnect the electrical plug into the vehicle harness, done.
Yes, there is a diagram showing the wire connection for the 1993 Camry LE O2 Sensor. A person can get this diagram by purchasing the maintenance manual to this car.
It has a conector, just un plug it. Then remove the 02 sensor from the exhaust.
Downstream O2 sensor is an O2 sensor after the catalytic converter. Upstream O2 sensor is an O2 sensor before the catalytic converter.
Should be the rearmost O2 sensor in bank 2. Use a wrench or O2 sensor socket to get it out. Unplug it first from the harness so it doesn't get all twisted and damage the plug on the car's harness.
It resembles a spark plug with wires attached.
Unplug the sensor, Unscrew it with the correct size wrench, screw in the new one and plug it in.
If you are replacing an O2 sensor with a new one there is no need for a special wrench, unplug the electrical connection from the vehicle harness of the bad sensor. Cut the remaining wire harness off of the bad sensor so you can slip a 7/8" box end wrench over the sensor and turn it CCW to remove it. Install the new sensor with an open end 7/8" wrench and tighten it as you would a spark plug (no need to over tighten). Plug the harness back together and your done.
Bank 2 sensor 1, O2 sensor heater circuit malfunction. If the wiring and the electrical connection to the B2 S1 sensor looks okay, replace the O2 sensor. The B2 S1 O2 sensor is on the passenger side exhaust pipe directly after the exhaust manifold.
The O2 sensor should be located on the exhaust pipe, between the manifold and Cat. converter. It resembles a spark plug and attaches directly into the pipe.
It unscrews just like a spark plug.
Upstream O2 sensor is located on the first muffler pipe coming out of the engine. This sensor can be found after you open the whood and look directly behind the engine. The sensor is connected to a wire and will end on electric connection to your computer.
don't know what you mean by upsteam O2 sensor but the first sensor is in the manifold, clearly visible with you open the hood. Resembles a larger spark plug and has a wire coming out of it. You can use a 7/8 inch/22mm hex to remove it. Not sure about removing the wire but it's probably similar to the O2 Sensor on the CAT. You squeeze the pin holding the connection in place and pull out.
From Underneath the vehicle locate the sensor and using an open end box wrench lossen and remove the o2 sensor follow the wire up into the engine compartment dissconnect from the connection, plug in the new 02 sensor and carefully fish it through so that you can install it as the old one was removed
If your plan is to install a new O2 sensor, I would unplug the electrical connection to the sensor and then cut the wires off at the sensor. Doing this will allow you to slip a 7/8" box wrench over the sensor and turn it counterclockwise to remove it.
Bank 1 sensor 1 is usually the #1 plug side and in front of the cat converter.
on your exhaust, its a spark plug looking thing
It unthreads much like a spark plug. I would unplug the electrical connection then cut the wires off the sensor. This will let you slip a 7/8" box wrench over the sensor. Remove by turning counterclockwise, it may take some force to break loose.
Under the hood faceing the motor look to the left rear of motor. You will need a specialty 7/8 wrench curvered to reach it. Remove black cross frame support its the long curved brace from oneside to the other of the car. Remove wiring harness that has the plug to the o2 sensor. Remove plug unscrew o2 sensor,replace and re install.
on the front of the engine. it has a white wire on it and it screws in and out like a spark plug