Standard Ignition AC544 Idle Air Control Valve

Idle Air Control Valve for Mazda and Kia

Standard Ignition AC544 is an idle air control valve for select Mazda and Kia applications. It is built with a rectangular connector shape, 2 ports, and 2 terminals, and it includes a gasket for service replacement on the listed vehicles.

Key Features

• Idle Air Control Valve for air and fuel delivery system service
• Rectangular connector shape for the specified electrical connection
• 2-port, 2-terminal design
• Gaskets included for installation sealing
• Standard Ignition AC544 replacement part

Application Details

This Standard Ignition AC544 idle air control valve is used to restore idle air management on select 1997-1998 Mazda Protege, 1997 Kia Sephia, and 1999 Mazda Miata models. It is a direct-fit service part for vehicles that use the listed connector and port configuration, making it a practical choice when diagnosing idle speed concerns on Mazda Protege, Kia Sephia, or Mazda Miata applications.

This part cross-references AEC1183 and AC454 for the same application.

What It Helps Address

• Unstable or fluctuating idle speed
• Engine stalling at stops or during warm-up
• Idle speed that is too high or too low
• Air bypass control issues in the throttle body system
• Idle quality problems after IAC valve wear or contamination

Installation Notes

Verify connector shape, port count, and terminal count before installation. Clean the mating surfaces and replace the gasket during service to help maintain a proper seal. Confirm the throttle body and related passages are free of carbon buildup so the replacement valve can operate correctly.

Quality Assurance

Standard Ignition replacement parts are built for service applications in air and fuel delivery systems. Confirm fitment against the listed vehicle coverage before installation.