I have a 1989 929, when its cold it runs real bad but once warmed up it has problems idleing, the car shakes and sometimes when stopped it stalls, mine is an auto, but when driving like on the highway it runs fine. Is your problem similar?
A vacuum leak is one possibility.
I think your alternator doesn't work properly.
To adjust the idle on a 1994 Mazda RX-7 with a 13B engine, first ensure the engine is fully warmed up. Locate the idle adjustment screw on the throttle body, which typically requires a flathead screwdriver. Turn the screw clockwise to increase idle speed or counterclockwise to decrease it, while monitoring the tachometer to achieve the desired RPM, typically around 800-900 RPM. After adjustment, verify that the idle is stable and recheck if necessary.
The car was staying idle.
"Noisy" because the engine is vibrating more than normal? Low idle will cause the engine to shake. Low idle can be caused by - Dirty/clogged/sticking EGR valve - Vacuum leak or air intake leak - Dirty MAF sensor
To adjust the idle on Mazda 929 from 1992-1995.......on the top side off throttle body there is a idle air screw,turn screw cloclwise to reduce RPM. Question...is idle always high when hot or cold?
Idle Eyes ended in 1994.
One reason why your 1994 Nissan Altima could be sputtering at an idle is because of your spark plugs. It could also be caused by the idle sensor.
I have a Mazda 2001 Tribute and I just replaced the Idle Air Control Valve (IAC). I searched for Idle Speed Control actuator and there does not appear to be one. The IAC is the silver module right on top of the manifold.
go on line search Mazda parts
How do yu adjust idle in a nissan sentra
Idle speed is computer controlled and is not adjustable.