If it is a federal vehicle you can't adjust it.has IDLE control valve.that sucks,huh.
Could be the idle is set too high, maybe the mixture screw passageways are plugged up.
The idle air is adjusted via a screw on the linkage. The gas flow is automatically set by the computer via the vari-jet inside the carburetor.
Because your engine and therefore oil pump are turning slower at idle. It is a normal condition unless you hear rattling also at idle.
using a tach , idle adjustment on R/S of carb ( drivers side when standing in front of car ) adjust idle in PARK , A/C off
There is no idle ajustment on a TBI, It is precailbrated and sealed from the factory DO NOT FULL WITH IT AT ALL..... You have another problem like a vaccum leak under the throttle body, are some where.
If a Zx2 shudders and dies out at stops and idle, the idle might need adjusted. If the idle is set too low, it will not maintain enough power.
Cmos inverter has very less power consumption when it is idle where as nmos inverter still consume power when idle.
you should check the crank sensor and ignition modual
the cold idle is controlled by the PCM ( power train control module) the computer of the car and idle is not adjustable.