An idle cylinder refers to the state when the engine is not coupled with the drivetrain and with throttle pedal not depressed. There is rotational speed but it is not enough to move the vehicle.
The idle speed is factory pre-set, and no adjustment is available. If the idle is too high, or too low, you will be having other problems that will affect the idle. In cooler temperatures, it will take the engine longer to come out of fast idle, as the engine warms up to operating temp. If the idle is too high/stays at a higher than normal idle, then take the thing to get it repaired. Running a car in gear(automatic transmission) with a higher than normal idle, can damage the transmission.
if battery has gone dead or has been disconected you will have to have your idle relearned How do you relearn the idle?
There isn't one...the idle speed is controlled by the engine management computer and is not adjustable. Idle speed problems are typically caused by a malfunctioning IAC (Idle Air Control valve), dirty throttle plates, or vacuum leaks.
throttle body or idle air control value
A 1998 Chevy Prism's idle speed is computer controlled. You will have to take it to a garage to get it set. However, the idle speed could be altered if, say, your spark plugs are seriously worn. Changing them may restore the original idle speed.
Idle should be between 500 to 750 RPM.
Hey Bill==It is probably the idle speed solonoid. Have it checked out. GoodluckJOe
The computer will set the idle between 600 and 1200 rpm.
Idle is computer controlled and is not adjustable.
.750
The idle speed is computer controlled. If the idle is too low, there is a problem with a ssensor or the idle speed motor.
Should be at least 10 at idle. 25 at idle would be better.
Is it a 4 cylinder? Sometimes a 4 cylinder engine will shake a little extra when the AC is running and it's at an idle. You might be able to step up the idle a little extra but 4 cylinder engines are notorious for shaking when the AC is running.
You can not adjust the idle screw, it is sealed off at the factory. If you are having a high idle problem check for a vacuum leak or a bad idle air control valve. These will commonly cause a high idle.
Normal is 30 at idle. 50+ at 3000 rpm. Minimum is 12 at idle.
Cylinder misfire. Possibly failed or failing engine mounts.
Could be a vacuum leak