Im not sure about a 92, but when it happened to my 98, i had to replace the Idle control valve. its generally about 50 bucks and is very easily done.
Smaller engines often surge when the AC "cycles". Next time, see if it's surging when the AC compressor turns on.
check the o2 sensor
Mounted on top and inside the fuel pump.
There is no adjustment screw, idle is automatically controlled by the pcm.
dude it is the same thing as the grand ams.
It is located behind the harmonic balancer, also called the vibration dampener.
The Achaiva from 92 to 97 replaced the Cutlas Calais. It was replaced in 99 by the Oldsmobile Alero
distributor shaft
Rough idle lacks power
Computer controlled not adjustable
It is a chain in a 93, I would think it would be in a 92 as well.
You really neeed a manual to get it right. Get one at AUTOREPAIR2000.COM