Joey is right, I think it took me 25-30 minutes to replace the drivers side front sensor. I never did get the clip 'clipped' back into the clip holder. Instead I tie-wrapped the wire away from the transmission and header to the metal tube that runs port and starboard against the firewall.
The O2 sensor I received from oxygensensor.com had a 'Walker' name brand on the box, but the innards were NTK. $90.00
Now for the technical stuff: I have Bank 1, Sensor 1 & 2 replaced I checked out the responses on the scanner.
First I replaced the Bank 1 - Sensor 2 and ran the scanner. The signal was not longer flat lining at 1.000 but dropped to .9(40-80).
Later, I replaced B1S1 and then ran the scanner. S1 moved up and down very well but now S2 was hovering above 0.0 - 0.1(.2).
With this information, I can now compare the signal response to B2S1 and B2S2 to see what Sensors look like when they are getting old. I was getting a P0130 DTC and was intrigued about what that meant.
In a couple of weeks I am going to change out the Driver side sensors.
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As for instructions:
Get two 11/16" flare wrenches and cut one to about three inches of handle.
When you disconnect the sensor from the plug, drop it down to the sensor and fold into a small bundle and hold with a rubber band. This helps while the sensor is turning. I guess the wires could be cut but at your own risk. Use the short handled wrench for the driver side front sensor. It is tight for a normal wrench. But the normal wrench is useful for braking the sensor loose. You will need to hold the wires and the sensor at the same time while switching over the wrench as the twisted wires will try to return the sensor to the previous position. Once I figured that out, it 5 minutes or less to completely remove the sensor.
Wrap the new sensor's plug into a paper towel to keep grease and oil from getting onto the surface. Fold gently and secure with a rubber band.
Put anti-seize (high temp) on thread.
Carefully turn the sensor into the threads and ensure the bundled wire is not getting kinked.
Once the crush washer - crushes... connect.
I thought, later on, that the best way to attach the driver side front sensor plug was to place a cloth on the engine and then lay plywood up there so you could approach the sensor from the left side of the engine.
I had to remove some of the coil pack connectors just for access, since I have large hands. It made access easier.
This is my summary on a task I had no idea how to do except by sheer wits and the rain was starting to arrive..