93 honda civc idle control

There is an air/idle control screw on the intake that needs to be adjusted. If the air/idle control gets out of adjustment, the engine idle will go up and down. It has to be set at about 650 - 700 rpm on an automatic and a little higher for a standard transmission.

Most likely the idle air control valve. Common issue on Hondas

Idle Air Control on this motor is a HUGE ISSUE...

idle air control valve is bad replace it. at start up choke control runs till warm up while driving throttle opening controls engine at idle ,the idle air control valve.

You probably have a bad Idle Air Control Valve (IACV). In fuel injected carburetors when the throttle valve is closed the IACV opens and closes to control the idle speed. If it malfunctions the engine may rev up allowing the car if in gear to accelerate on its own . When I had a bad IACV in my Mitsubishi Lancer it would drive down the road at 50 mph with out touching the gas pedal. Fortunately, it could be slowed down by using the brakes (unlike the Toyota stories).

air in the IACV (idle air control valve) coolant line - air bubbles in the coolant will confuse the iacv into incorrect idle settings.....even when hot, and a fault in this unit will do the same thing, very very common fault in a honda.

The 1996 civic has a 1.6L b-16 engine. The only difference between the v-tec and non v-tec engine is the dual overhead cam i believe. The 93 civic also should have a b-16 engine in it. The cylinder head should work.......

check DTC by scanner or by diagnostic connector

that radiator wont fit the civic. it will be too big ... always put the correct size radiator and correct part number radiator in the correct vehicle..

you should have it checked at a dealer ...that means that your supplemental restraint system is not active that is your airbags....!!!!!!