The idle position sensor sends a 4 to 20 mil-amp signal to the Microprocessor, that set the optimum idle speed.
it controls idling of car engine, without it it will not idle..
The IAC the Idle Control Valve, this controls the mixture between fuel and air for the idle of your vehicle.
The idle air control valve on the Chevy Colorado actually controls the speed of your engine's idle. The valve is sometimes called the idle speed control valve.
The idle air control valve on a Volvo S80 is located on the intake manifold. The valve controls the rate at which the engine holds an idle.
Aprox 650 rpm in drive.
A bad idle air control sensor or a bad throttle position sensor.
scan for codes maybe tps throttle position sensor
The idle air control valve controls the neutral idle of the 2001 Honda Accord. A faulty idle control valve leads to an erratic idle. To replace it first locate the valve on the intake manifold. Unplug the unit and remove the three bolts holding it to the manifold.
It stands for Electronic Control Module. It is located on the distributor & controls the fuel/air mix, idle setting etc.
Hot at idle, 20-30 psi.
This car is computer controlled, and assuming it has the Chevy 305 it is also fuel injected. There is probably a problem in the computer controls causing it not to idle. Do not attempt to adjust idle, as it will not fix it, and may cause other issues when the innitial problem is diagnosed and repaired.
You have a bad fan clutch..............