Standard Ignition AC418 Idle Air Control Valve

Idle Air Control Valve for GM 2.2L Applications

Standard Ignition AC418 is an idle air control valve built for precise airflow management at idle. It uses a polymer-blended, isotropic neodymium/iron/boron magnet, a high-strength stepping motor, and a shielded ball bearing to support accurate pintle movement and long service life.

Fits 2002-2005 Chevrolet Cavalier, 2004-2005 Chevrolet Classic, 2004-2005 Chevrolet Malibu, 2002-2005 Pontiac Grand Am, 2002-2005 Pontiac Sunfire, 2002-2004 Oldsmobile Alero, and 2003-2004 Saturn Ion.

Key Features

• Standard Ignition AC418 idle air control valve for fuel injection system service
• 4 blade terminals with an oval connector shape
• Hardware included; gasket not included
• Stepping motor construction for controlled idle-air adjustment
• Shielded ball bearing helps resist environmental contamination
• Load-tested actuator for added durability and consistent operation

Detailed Description

This idle air control valve regulates bypass air around the throttle plate to help maintain stable engine idle speed. Standard Ignition AC418 is engineered with a high-output stepping motor and a durable internal magnet assembly to support accurate pintle response, which is important on vehicles that rely on precise idle control during cold starts, accessory loads, and stop-and-go driving. This part cross-references Delphi CV10037 for the same application.

For buyers searching for an idle air control valve for a 2002-2005 Chevrolet Cavalier, 2004-2005 Chevrolet Malibu, or 2003-2004 Saturn Ion, AC418 provides a direct-fit service part option. It also matches common replacement needs on Pontiac Grand Am, Pontiac Sunfire, and Oldsmobile Alero applications listed in the fitment data.

Common Issues This Part May Address

• Unstable or fluctuating idle speed
• Engine stalling when coming to a stop
• High idle after startup or during warm-up
• Idle speed changes when accessories are turned on
• Idle control faults related to worn internal motor or pintle movement

Installation Notes and Tips

Verify the oval connector, 4 blade terminals, and vehicle fitment before installation. Clean the throttle body and idle air passages during service so the new valve can control airflow accurately. Because a gasket is not included, inspect the existing gasket and replace it if the sealing surface is worn or damaged. Hardware is included, which helps streamline installation on the listed Chevrolet, Pontiac, Oldsmobile, and Saturn applications.

Quality Assurance

Standard Ignition manufactures this idle air control valve with high-grade materials and load testing to confirm the actuator delivers more force than the actual operating load. The result is a service part built for consistent idle control and extended durability in demanding underhood conditions.