Sage-Tips

How do I relearn my idle control valve?

A. Idle Relearn

1. Start the engine in Park/Neutral. Rev the engine to above 2,500rpm and hold for 10-15 seconds.
2. Slowly reduce throttle back to idle.
3. The ECU should now begin to learn the idle position (you will hear the sucking sound through the throttle body change as the Idle Air Control Motor changes position).

How do I fix code P0505?

What repairs can fix the P0505 code?

1. Replacing the IAC valve and cleaning the throttle body and passages.
2. Removing carbon from throttle body and IAC passages and clean IAC.
3. Repairing a vacuum leak in the engine intake manifold vacuum system or gaskets.

Can I drive with a P0505 code?

Trouble code P0505 should be diagnosed and repaired as soon as possible. Not recommended, however, you may drive your vehicle while trouble code P0505 is present unless the engine stall or stumbling is is severe enough to hinder proper vehicle operation. Erratic or lack of idle control may be noticed.

What code is P0505?

What Does the P0505 Code Mean? Diagnostic trouble code (DTC) P0505 stands for “Idle Control System.” The code may be accompanied by erratic idle speeds that can lead to stalling and other issues. On most older vehicles, the idle control system relies on an idle air control valve (IAC) on or near the throttle body.

Is there a “reset” in idle?

Try to clean out the passage way to the idle air control valve at the throttle body. Once the throttle body has been cleaned and the instructions have been followed, you can reset the idle air control valve by turning the ignitionkeys to the on position for 30 seconds and then turn the keys to the off position then on for 10 seconds and then start.

Can you remove an idle air control valve?

Here’s How To Change an Idle Air Control Valve With the vehicle cooled down in an out-of-the-way spot, pop the hood and locate the idle air control valve. Remove any parts that are in the way of accessing the idle air control valve. Unplug the electrical connector on the idle air control valve. Remove the idle air control valve. Remove the gasket and make sure no gunk is left behind.

How do you check the idle air control valve?

One of the easiest ways to test your idle air control valve is to simply look at it. Check to see if the valve stems have dirt on them or if they are burnt. Check the valve opening on the throttle body also to make sure that there is a solid contact between the valve and the stem.

How do you clean idle air control valve?

Unscrew the idle air control valve by removing the screws that hold it to the throttle body. Detach any wires coming from the valve so you can remove it completely. Clean the valve by soaking it in gasoline. Move the flap in the valve while it’s soaking, to ensure the gasoline reaches inside it.