1991 Honda Civic "idle control valve" Questions

...Idle Speed Control (ISC) System - Malfunction Possible Cause: -Wiring harness. -Idle speed control (ISC) actuator/Idle air control valve (IAC) valve. -Throttle valve tight/sticking. -Engine control ...

...Idle Control System Idle speed is controlled by the Idle Air Control Valve (IACV). The IACV changes the amount of air being bypassed to the intake manifold, in response to electric current controlled ...

...Idle Speed Control (ISC) System - Malfunction Possible Cause: -Wiring harness. -Idle speed control (ISC) actuator/Idle air control valve (IAC) valve. -Throttle motor. -Throttle valve tight/sticking. ...

...idle air control valve or a dirty throttle body. Engine stall or RPM fluctuates at idle. This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve. Buy a can of ...

Idle Air Control Valve. 5InspectIdle Speed ActuatorDamaged, Loose, or Faulty Idle Speed Actuator. 6InspectThrottle Position SensorFaulty or Incorrectly Connected Throttle Position Sensor. 7InspectFuel

...non v tech, stalls out at idle, can you set timing or idle speed or what? Sounds like you may have a bad (IAC) IDLE AIR CONTROL VALVE.It controls how much air the motor gets at idle.hope this helps

returns to normal. What causing this up and down idle? Thank You! some older motors will have worn vacum control valves in your emssions control system a leaking valve or broken vacum hose would do it

...always up and down Usually this is a vacuum leak. It also could be low on coolant, so the IAC (idle air control) valve isn't getting coolant to warm it up. The IAC valve itself could be the

...air filter. - Check for vacuum leaks around the intake manifold. - Do the throttle body cleaning, free up the idle air control valve and relearn the idle speed control valve. slipping clutch

...idle air control valve off & give it & port it came out of a good cleaning with throttle body spray cleaner, and see if that cures it. If it does, but starts to do it again later, replace it. ...