allcluedup
511
8
4
Makes no difference if it's manual or CVT , same sensor location and same sensor part number
Need to remove the left side foot rest as the sensor cable runs straight underneath it through a hole underneath the chassis next to the front of the catalytic converter
Also need to remove a single Philip head screw and bend the plastic cover from the console out of the way a bit
Tried to zoom in without moving from taking the photo above
All photos above was taken from same position to make it easier to see where the plug for the o2 sensor plugs in to
The very top of the plug needs to be pressed down as that's the locking clip for it that holds the plugs together
Grab the carpet and fold it back a bit and it will expose the round black gromet where the o2 sensor seals the chassis
You can wiggle and poke the rubber seal through and the cable also so it all falls on the floor underneath if you wish
Under the car there's a metal bracket with 3 metal tabs that hold the wiring in place , the tabs can be raised slightly with a flat head screw driver to get the cable out underneath those wires
This particular car has a wideband sensor at the front, so the OEM o2 sensor is the rear one
22mm open ended spanner fits the sensor nicely, a few quick sharp hits with a hammer to knock it loose is all it needs ( lefty loosey AKA anticlockwise)
The genuine Bosch sensor is bought, part number is right infront of you
Top of the plug that connects on the rear of the HVAC system, this connects the o2 sensor to the car wiring that has the signal sent back to the ECU
Looking at the rear of the plug from the top
Only need one finger on top of that plug to press down on it to disconnect and slide the plug out
When sliding through new plug in , it will make a very loud click when its home
The rubber seal grommet . Notice there is a bit of a gap so it will make a nice seal . When its mounted in the car i found it easier to push the whole rubber grommet through to the bottom of the car and then slowly press it back in and it clicked in to place
Old sensor is out
When installing the new sensor i found it easy to start inside the cabin, leaving the plastic cover on the o2 sensor and feed almost all the cable through the floor hole and leave the connection plug in the cabin to make it easier to grab.
Once the majority of the cable is pushed through to the bottom of the car, you can then put a punch of anti seized on the threads and screw the sensor in to the exhaust.
As you do this you need to take your time as this part is most critical. Remove the plastic cover off the sensor before screw it in place.
And only tighten it up with fingers to begin with.
Only do it about 1/2 to 3/4 of a turn and then watch the wiring
The wiring will bunch up and tighten up
As it does this you need to stop turning the sensor in to the bung and carefully untwist the wiring all the way up the cable
This will take a few minutes to do and is very important you do this.
Why?
If you don't the cables will be under a lot of stress and as the exhaust goes through a full heat and cold cycle it will put the cable under more stress, eventually damage the cable / sensor
And then you need to replace the sensor again
So it's problem best to do it right the first time.
Once the sensor is tighten all the way down and secure in the bung don't forget to tighten it up firmly with the 22mm spanner, no need to use "superman " strength to tighten it up, however, it does need to be firmly done though .
Feed the cable back up in to the cabin And before you put the rubber grommet in place, lay the cable in the 3 or so clips you had to previously bend out with a flat blade screwdriver and gently press the tabs back down and try not to catch any wiring underneath the tabs , again to avoid stress and vibration through the cable so not to break the wires down the track.
Wriggle the rubber grommet back in to place.
Back in to the cabin And feed the connector back up the floor and through the cut out in the carpet in to the plug from the ECU.
Press the plug firmly together and it will make a very loud click as it does
Now put the carpet back and the foot plate back on and pack up the tools and go for a test drive.
I bought the sensor of "prestige auto parts " in Australia and was quite reasonable priced with freight less then $150 AUD
Enjoy