Standard Ignition AC584 Idle Air Control Valve

Idle Air Control Valve for Fuel Injection Systems

Standard Ignition AC584 is an idle air control valve for fuel injection systems that regulates bypass air at the throttle body to help maintain a stable idle speed. It uses a female connector with one connector cavity, two hose connections, and male pin terminals for a direct electrical and air-path interface.

For drivers searching for an idle air control valve for Subaru applications, AC584 provides a service replacement option for restoring idle control behavior. This part cross-references Subaru 22650KA030 for the same application.

Key Features

• Idle air control valve for fuel injection system service
• Female connector with 1 connector opening
• 2 hose connector ports for air routing
• Male pin terminals with 2 terminal positions
• Standard Ignition part number AC584
• Cross-reference: Subaru 22650KA030

Detailed Description

Standard Ignition AC584 is built for idle speed regulation by controlling the amount of bypass air entering the engine at idle. That function is important when the throttle is closed and the engine needs a controlled air supply to maintain smooth operation. For Subaru vehicles that use this configuration, AC584 is a practical replacement when the original idle air control valve is no longer responding correctly. The connector and hose layout should be matched to the original unit before installation, and the part number AC584 should be verified against the vehicle’s service information.

What It Helps Address

• Unstable or fluctuating idle speed
• Engine stalling when coming to a stop
• Idle speed that is too high or too low
• Rough idle after throttle closure
• Idle control faults related to the valve or its air passages

Installation Notes and Tips

Confirm connector gender, terminal style, and hose port layout against the original component before replacement. Inspect the throttle body, intake passages, and related vacuum or air hoses for carbon buildup, leaks, or damage that could affect idle quality. After installation, clear any stored fault codes and verify idle behavior at warm operating temperature. Fits should be checked by part number and vehicle service data for Subaru applications using AC584.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management service parts. AC584 is built to match the specified connector and terminal configuration for the listed application reference.