I have no idea what this sensor is for. Nothing was plugged in here when I got the car and I don’t see a missing plug. Never seen one on the air intake like this. Any ideas ?

 

Intake Air Temp. Pretty commonplace really.

 

Ok. So someone added that.
might explain the hole in the dash under the center vents.

 

The air induction upper duct you have there is for a V6 Camaro. If your car has a V8 engine then there is nothing to plug into that IAT sensor because the V8 models didn't have an IAT sensor.

No it doesn't explain the hole in your dash under the air vents.

 

Some of the V8s did. It was used in some years butt not all.

LOTS of cars use one of those. My truck for example, 04 5.3, has one integrated into the MAF sensor.

In any case, totally unrelated to holes installed elsewhere in the vehicle, at least in terms of anything that makes any kind of logical sense, anyway.

 

Ok. Thanks.
I guess someone replaced the front air induction with the incorrect one. Cause it is a LB9 car.

 

Yeah at some point in the car's life someone replaced the air duct used by the Tuned Port Injection V8 engine with the air duct used by the Multi Port Injection V6 engine. They are the same except for the mounting boss molded into the one for the MPI V6 for the IAT sensor. TPI V8 engines used a (MAT) Manifold Air Temperature sensor instead of a (IAT) Intake Air Temperature sensor. As long as the IAT sensor is in the air duct no unfiltered air is entering the engine. Everything will be just fine the way it is now.

Many people that custom tune their TPI engine convert the MAT which is located in the TPI upper plenum to an IAT and locate it as far forward in the air induction system as they can on the filtered clean air side of the system. Most aftermarket computers for TPI engine will use an IAT sensor instead of a MAT sensor.