There is not a low idle screw. The computer sends a signal to the idle air control motor and it does the adjusting accordingly. If your idle is to high and your check engine light is on then you need to go to a repair shop and have them diagnosis the problem.
why does my 4.75 BRIGGS & STRATTON lawnmower engine idles high and low when cutting my grass
Since it is starting from 0, the engine idle is low.
low idle and uneven idle
If the engine is electronic, engine speed at low idle and high idle is controlled by a computer. If it's an older engine, a set of weights and springs work together inside the governor part of the injection pump to control low and high idle. In between these speeds, your foot does the job on the accelerator pedal.
The idle speed is computer controlled. There is no adjustment. If the speed is too high or low, there is a sensor/actuator/wiring issue.
You don't. The ECU controls the ISC (Idle Speed Control Motor) which adjusts the idle. If idle is out of control (too low or too high) try gently tapping the ISC with a small (0.5 pound) hammer or a large wrench while the engine is running. If tapping the ISC makes a change in idle speed, you need a new ISC. Clean the throttle body whenever replacing the ISC. If the ISC is not the problem, look for vacuum leaks which can cause both high and low idle. Low coolant level can cause high idle. Also, note that many clueless drivers assume that the idle is wrong (high) when the car is just using high idle (normally) for a short time after a cold start especially in cold weather.
Idle speed is not adjustable. It is controlled by the engine copmuter. If your idle speed is too high or low you have a problem with a sensor or the idle air controll actuator. Also, a weak battery can cause the idle too be erratic
Why is that my idle is low what cost that to do it
The engine will idle up and down usually. It can also idle high or real low. But other things factor in on how the idle air works
there is an idle control on these cars, could also be a problem with your intake, and idle. that's what was wrong with my 2000 focus. i lowered the idle, and changed the air filter.
Yes, it can cause low/unstable idle or die off at idle.