why does my vr commodore idle rough when at complete stop
vacuum leak
Fuel injectors
check your idle control valve located behind the engine
Rough idle, loss of power, poor mileage.
IACV - Idle Air Control Valve Your car is probably experiencing rough idle.
A leaky mass airflow sensor or it can be a leak in the air intake hose.
YES it does. It should be close to intake.
There are several things that can cause your 1993 Nissan 300 to idle rough. The most common cause is dirty spark plugs. Bad spark plug wires can also cause the problem.
rough idlingTry cleaning the throttle body with throttle cleaner and tooth brush. Remove the cover first. Soot builds up in this area causing the flap to stick resulting in rough idle. I have cleaned mine to new condition and I still have a rough idle. The dealer told me these motors never idled very smooth in gear.
Why does my 2001 kia sportage idle rough?
rough idle smell gas
You can start with the 02 sensor. if that does not fix the problem then you may have to consider the ECU.