Ben87GTA

On the intake manifold on my 87 GTA's 350, there are 3 plugs on the front of the manifold.. one is the IAC im guessing.. well, the bottom one broke (the plastic part) and it's not wanting to come out, and since im putting a new manifold on, I figure that I might as well put a working plug in there.. What I'm asking in less words is if anyone has a diagram of what connectors are what... or if they could label a pic for me, so I know what part to buy.
thanks
Ben

Ben87GTA

ok, the one that broke is the one that is underneat the line that hooks up to a coolant hose....
thinking IAC or something, ideas ?

8Mike9

The IAC should be a 4 pin, square-ish connector into the ThrottleBody....above the IAC is the TPS, can't think of a 3rd one on the TB?

rondubbs

the IAC is on the tb,, you are referring to the sensors on the manifold itself, the one you are talking of is either the CTS(coolant temp sensor) or the Thermo Time Switch which controls your 9th injector AKA Cold Start Valve(located on the bottom of the driver side runner). this tells the 9th injector if the engine is cold and makes it open to feed more gas on cold starts. i think you are referring to this. look at the harness for this, it should look like the harness for the injectors.. if so then its the TTS that you need to replace.(well you dont really need to replace it, alot of people block the 9th injector anyway,, it will just make your car harder to start when its cold.
good luck

Ben87GTA

Hrmm. ok, thanks
Is this a part that like discount auto parts or autozone will have? if not, then what is involved in blocking off the 9th injector..thx