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Idling is what your car is doing when it is just sitting somewhere running. As soon as you press on the gas it is no longer idling. Your idle speed is the number of RPMs your engine runs at when you are idling.
My engine is idling too high. How do I adjust the idle speed?
Check your vacuum lines this usually the cause for a surge in engine speed when idling or running.
Because - if an engine (powered by fossil fuels) is running - even at idling speed, it's still producing waste gasses - which polute the atmosphere !
A 1996 Toyota Tercel will hesitate on acceleration at cruising speed if the fuel filter or injectors are clogged. This prevents the engine from receiving enough full and will hesitate.
The idling speed is automatically sensed ....and set by the Air control valve
Check your idling speed it might be too low to support the AC motor, so when you turn on the AC the engine dies, try increasing the idling speed a bit at a time.
There is a speed sensor under the left side of the engine, close to the oil filter. When this goes bad, the transmission hesitates to shift upwards because of incorrect speed signal.
The idle speed sensor tells the onboard computer how fast your engine is idling. The location of the idle speed sensor on the VW Jetta is on the actual throttle body.
It is zero: when it is idling.
Sonds like the idling speed is too low - it can be adjusted (Usually with just a screw driver) if you know the right screw to turn to give the engine higher idling revs.
Stepper idle speed actuator in carbureted vehicles it is used to control the engine's idling RPM. It also regulates the position of the throttle valve plate.