The problem may be that you have a bad idle air control vale, a bad throttle position sensor, a dirty e.g.r. valve, a stretched timing chain and gears.
Computer controlled - not adjustable
WAS A COIL PACK ON MY 1992 CORSICA possibilities as simple as a complete tune up. Check the fuel filter. It may not be getting enough fuel. Or could be clogged injectors. the problem could be caused by a sticky idle control motor
cuantas millas por galon hace un chevi corsica 1989?
it could be, you should deff. get it checked out by a mechanic
check the soleinoid
It's likely the fuel pressure regulator. I had a Chevy Corsica with the same problem and it was solved by replacing the regulator.
CHECK COIL PACKS
If a 2001 Cadillac DeVille shakes when the car is idle, there could be an issue with the powertrain. There could also be a problem with the crankshaft position sensor.
There are many ways you could cure a rough idle. You must first diagnose why the problem started in the first place.
Other than resetting the ECU, disconnecting the battery should not cause the bad idle. You have reset the ECU and it may need some time and driving cycles to idle correctly. But I am doubtful this is the problem. I would suspect this is just a coincidence, and you have another problem.
On a 1992 Acura Vigor idle is adjusted through a idle control valve. Tightening the valve well raise the lower the idle and loosening it will raise it.
Idle is set by the computer.