OK, after reading through your little private conversation I went and had a look at my car, (have you two considered getting a room?
)
Anyway there really isnt that much to them.
On the frount of the TB is a large vacume pot, its does nothing but stop the throttle from slaming shut, and has no effect what so ever on the engine speed.
However you might want to give it a wiggle and a push to make sure it hasnt seized. It its stuck out it will run the car at about 1500rpm.
On the back of the TB is the tps, there is nothing attached to the TB that is designed to control its position.
There is that small brass screw in the top of the TB, but I really have no idea what it controls, and im not keen to play with it. I also found one I got for you sometime ago, put down somewhere and forgot about. Ill throw it in the post asap.
On the fire wall directly behind the TB are two little black things with Vacume lines leading into them. The one on the driverside is the Vacume sensor for the ECU. Disconect the vacume from it and it turns on the check engine light. (I didnt check if it threw a code)
The other one has some control over the cold idle speed!
If you take off the vacume line when the engine is a little warmed up it revs to its totaly cold setting. But removing the line when its hot will have no effect.
It has two lines, one in, and one out. the in comes off the back of the TB. the out line runs to a piece on the back of the fuel rail, that I assume richens the mixture.
My guess is its this Controler that has failed. Ill have to try and see if its the same as any other models, otherwise theres one on the SiR at strongs.
I assume its oil or water temp that is used by the ECU to control it.
There is also a sensor on number 1 runner on the inlet manifold. I cant get one of the screws out (need an impact driver) to find out what its sensing. But I can only guess that it might be air temp?
and I assume you've checked simply things like the throttle cable? its not stuck or binding anywhere?
and, just a finnal comment.
With out any of the intake piping on it screams like a banshee having an orgasim!!!!!
:flash:
Throttle response is instint! and I mean instint, it will hit the limiter faster than you can move your hand on the throttle. awsome. really awsome. (and a good way to make the neighbors wonder)
The airbox clearly isnt big enough, nor is the intake pipe big enough.
Its ok at WOT, it must supply enough air then, but it certianly does hold back on the engine responsiveness. Its possible that things change of course when the car is moving, and under load. But im not prepared to drive it with an open TB! and no filter.