what is this??
Thread Starter
Member
Joined: Jun 2007
Posts: 474
Likes: 0
From: lynnwood,Washington
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73
what is this??
i was looking around my camaro and thought i would try to figure out what this sensor thing that isnt atched eny where is its been like this since iv had the car and i dont know what it is or even if it maters cause the car seams fine and it just passed emissions so idno but its just chilling on top on my intake manifold and i was wonder if eny one could tell me what it is and what it dose thanks.
Supreme Member
Joined: Jun 2005
Posts: 1,800
Likes: 2
From: Bremerton, WA
Car: 1992 RS / 1989 RS
Engine: 3.1L MFI / Vortec 383 TBI
Transmission: T5 / LS-T56
Axle/Gears: 3.42 open / 3.73 Eaton posi
Re: what is this??
I could be wrong, but that looks like the IAT (Incoming Air Temp) sender which plugs into the bottom of the air cleaner. It measures temperature for the ECM after air goes through the filter element. Those four prongs stick up through the bottom of the housing. Do you still have the stock air cleaner?
Thread Starter
Member
Joined: Jun 2007
Posts: 474
Likes: 0
From: lynnwood,Washington
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 2.73
Re: what is this??
I could be wrong, but that looks like the IAT (Incoming Air Temp) sender which plugs into the bottom of the air cleaner. It measures temperature for the ECM after air goes through the filter element. Those four prongs stick up through the bottom of the housing. Do you still have the stock air cleaner?
Supreme Member
Joined: Jun 2005
Posts: 1,800
Likes: 2
From: Bremerton, WA
Car: 1992 RS / 1989 RS
Engine: 3.1L MFI / Vortec 383 TBI
Transmission: T5 / LS-T56
Axle/Gears: 3.42 open / 3.73 Eaton posi
Re: what is this??
I found on another site, should give you an idea of how it's supposed to work. Ideally, it shouldn't be just sitting in the engine bay, there should be a hole in the bottom of your air cleaner that will fit into.
An air temperature sensor is used on fuel injected engines. The purpose of an air temperature sensor is to help the computer calculate air density. A change in temperature changes the resistance in the sensor. Simply stated, the higher the air temperature gets the less dense the air becomes. As the air becomes less dense the computer knows that it needs to lessen the fuel flow. If the fuel flow was not changed the engine would become rich, possibly losing power and consuming more fuel. The temp sender is generally located in the air inlet tube or the air box. The wire running to the sensor can be disconnected then the sensor can be unscrewed and replaced.
