I have a RS 89 TBI V-8and recently change the air filter on myRS but there a sensornext to the breather that i dont know where it hook up...anybodygot subjection???

 

i suppose your talking about a whole new air cleaner. youll need to take both the sensors out of the old one, and drill into your new one. Then put the sensors back into the new one, i would try and do it in about the same place if you can, just incase they are put there for a specific reason.

 

One is a breather and you can just get a breather filter for that and the other one you can ignore. I also have a tbi 305 and i put an edelbrock open element intake on it.

 

u think that why my check engine lights up???

 

there are sensors on the bottom of you stock air cleaner. you still need them. Just take them out and put them in about the same place. should be fine then. But as for that whole on the valve covers, ones the PCV valve and the other is just a breather. youll have to change the rubber grommet to a larger size for a breather to fit though.

 

have no problems with the breather ...so the sensor goes on the bottom of thealuminum bases

 

There are two sensors. One is a round one that you NEED for the computer. Its the intake air sensor. The other is a small rectangle that has vacuum lines on it. You can see it just goes with the doors on the thermosatic air cleaner so if you no longer have that you dont ned that one.

 

the sensor that i am talking about is grey with two inlet

 

The round sensor with the silver ring in the upper left corner of the pic you need to install in your air cleaner. The one dark one in the lower left you dont need. Its to open the flaps in the snorkle

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oh i know that,s why your check engine light is on! that sensor is the MAT sensor or manifold air temperature, very important, the engines were designed to run at a higher temp, around 220, they burn cleaner that way, emissions, smog crap, and the MAT sensor tells the computer whether too lean or richen the fuel, now my 91rs has a 195 degree t-stat in it, i would prefer it to be lower, but lowering the engine temp would,nt allow some sensors to function properly, like the MAT,MAP,KNOCK,EGR, and other sensors, that little mat sensor was the culprit in my service light coming on, only after full warm-up and at freeway speed, so hook it up, two prong wire comes off the manifold by back of Throttle body, good luck. Dhighway