Re: High Idle problems

[steveb@newkla.kla.com (Steven Buchholz)]

<<< DISCRETIONARY SNIPS ...>>>
> 
> Since I'm the only one who ever works on the car (main problem, I'm sure) I
> know that the Auxiliary Air valve hasn't been manually adjusted.  Is it
> possible that, suppossing my (hers, whatever) car - an '84 5kS 2.2L 5spd - has
> one of these gizmos, that this thing is stuck OPEN?  How would one test this to
> 
> -Mike '87 5000CS TQ
> 
When the engine is cold you should be able to disconnect the hoses and act-
ually see through the auxiliary air regulator.  When the engine is warm the 
regulator should be blocked.  Another test you can perform is to pinch off 
one of the hoses to the AAR to see if air is flowing through there when the 
engine is warm ... if so the RPMS would drop immediately after pinching off 
the hose.  

In response to your other message, if you are truly turning the idle adjust-
ment screw ... mounted on the throttle body, centered on top of the TB, on 
the inlet side of the TB ... you should be able to remove the screw.  The 
rubber seal may have cooked itself to the threads however.  Air is NOT sup-
posed to leak past this screw!  

The last suggestion is one that I don't have a lot of info on.  It is my re-
collection that the only basis to the unintended acceleration claim was that 
the operator error was exacerbated by wear on some part in the FI system that 
caused an unusually high idle.  The MY of the car is about right.  Anybody 
have more info on this?

Steve Buchholz
s_buchho@kla.com