Oldsmobile/Buick Repair: idle adjust, air control valve, vacuum leak

Question
Dear Sir,

I am trying to adjust the idle so my 98 Olds Bravada does not stall.  I see 2 cables, one for the throttle & one for the air intake.. I do not see a screw to djust it as in my past cars. How do I adjust it? Thanks in advance.

Regards,
Robert--

Answer
Hello Robert,
There is no adjustment screw. The engine computer is supposed to take care of that.
You may have a vacuum leak, or a dirty idle air control valve or port. Possibly the EGR valve is dirty.
Low fuel pressure could also cause your problem.

Van