looks like i need a mat sensor its in line screws to the upper radiator area in line with the intake hose black part supposidly it is makin my car run really rich 89 gta 350 tpi all original dont want to buy new cuz just need the car to run good for couple months and then im probly going to part it its gettin rusty got few bucks or parts to trade

 

The sensor that is in your radiator is the fan switch, if you need the sensor that would have somthing to do with fuel in-richment it is the coolant temp sensor and will be located in the intake manifold.
hope this helps!

 

no this is the thing with the screens in it thats inline with the intake tubes the car is a 89 gts tpi motor and its running very rich i dont need the fan switch or the manifold temp switch the one is air tem into the motor thats what im looking for asap