what is this called and what does it do?

[michaelb]

Hi

Today I want over a hump and as I was going over I scratch something beneath my car.  I reversed and went over the hump in a different angle.

As I was driving away it felt like I was dragging something under the car, I feared the worse â€" exhaust system..

When I looked under there was something what I can only describe what looks like a pin the size of a pen attached to a wire at one end.  The wire was attached to the car beneath.

It almost looked like a temperature sensor of the exhaust if it does exist..

It is a 96 RB Bathurst and I have a silenced dragon performance mid pipe â€" no cat.

I now managed to tuck in under some metal flap…it actually hanged initially closer to the passenger seat â€" at a stretch I was able to reach it with my arm.

What is that part and what does it do?  The car drives no different and behaves the same as before.

Regards,
Michaelb

[interloper393]

that sounds like the lamba sensor? if you hav a decat maybe it wasnt removed?

[antnicuk]

its the cat temp sensor,  most people just tuck it away when they fit an after market exhaust.  just cable tie up out of the way

[nikp]

Not the lambda sensor, but the cat heat sensor. A temperature probe in effect.

[interloper393]

well was almost right lol had the right idear anywho :S

[michaelb]

Hi

Thanks for that chaps, I though it might be but I have never seen one before, yes the cat was removed and I guess the sensor was left behind...

Regards,
Michaelb