I was "observing" my cat, with the intention of upgrading to a Jap-spec on the weekend, when I noticed a sensor going into the cat. this sensor is extremely tight (no doubt because of the expansive heat and corrosive gases etc.
point is, I couldnt get it out, and therefore the Jaap-spec upgrade is on hold until I know what this sensor does.
followed the wire to under the passenger side front seat, from where I assume it goes to the computer.
Questions:
1. what is the sensor
2. what does it do
3. what happens if I cut it?
4. who do other people with the same year/model not have this *swear word* sensor?