Idle air screw?
A. If you dont know the idle air screw is shown in the picture below. Make sure the car is warmed up, NO accessories or fans or anything is on, and if the idle is like 1500 then close the idle air screw a little, it should be open 2-3 full turns. Now, move the power steering hoses and wires out of the way, point the flashing timing light at the crank pulley, and watch the small tab on it illuminate and reference it’s location to the small timing marks on the plastic tab that sticks out over it. Q.I cant see it A. It can be a bit trying but it is there look down from left to right @ the main drive pulley Rotate the ditsy until the notch on the crank pulley is exactly in line with the “10” on the plastic timing mark indicator (this is 10 degrees before top dead center). Now adjust the idle air screw until your idle sits right at 650 rpms. Check the timing mark again, adjust if required and reset the idle air screw to 650rpm (depending on how far out your settings are you may have to do t
