ok not really sure what these are but basically looks like 2 sensors that are hanging down underneath the car. for the exhaust? they about inline with the doors underneath 1 on each side. what are they? where should they be? and what would the effect be of them not being there? i know its a little vague any help will be appreciated

Cat heat warning sensors, only fitted to import zeds, often disconnected when changing exhausts and left out as not required.

 

Jeff TT

cool mine has been changed did look like they had been tied out the way will just get them tidied away a bit better