Standard Ignition AC11 Idle Air Control Valve

Idle Air Control Valve for OE-Style Idle Control

Standard Ignition AC11 is an idle air control valve built for precise airflow management at the throttle body. It is a direct-fit style replacement for select Chevrolet, Pontiac, Buick, Oldsmobile, and Geo applications, including 1987-1992 Chevrolet Cavalier and 1992 Chevrolet Corsica.

With a 4-terminal oval connector, one port, and an included gasket, this Standard Ignition AC11 idle air control valve is built for accurate idle regulation and consistent engine response.

Key Features

• Oval connector shape with 4 terminals for the specified application
• One-port idle air control valve design
• Gaskets included for installation
• Polymer-blended, isotropic neodymium/iron/boron magnet for precise pintle movement
• High-strength stepping motor for controlled airflow output
• Shielded ball bearing helps resist environmental contaminants
• Load-tested actuator for added durability and consistent performance
• Manufactured with high-grade materials for extended service life

Detailed Description

Standard Ignition AC11 is engineered to regulate bypass air at idle so the engine can maintain stable speed under changing load conditions. The internal stepping motor and magnet assembly are designed for accurate pintle control, while the shielded bearing helps protect the motor from contamination over time. This makes the AC11 a practical replacement for vehicles that need dependable idle air management, including Chevrolet Cavalier, Chevrolet Corsica, Pontiac Sunbird, Buick Skyhawk, Oldsmobile Firenza, and related fitments listed below.

This part cross-references Gates 21756 for the same application.

What It Helps Address

• Unstable or fluctuating idle speed
• Stalling when coming to a stop
• Idle speed that is too high or too low
• Poor throttle response after idle
• Airflow control issues at the throttle body

Installation Notes and Tips

Verify connector shape, terminal count, and port configuration before installation. Clean the throttle body and mating surfaces, then install the included gasket to help seal the valve properly. Confirm the vehicle application against the listed fitment before ordering, especially on 1987-1992 Chevrolet Cavalier, 1992 Chevrolet Corsica, and other listed models.

Quality Assurance

Standard Ignition manufactures this idle air control valve with load testing and durable internal components to support consistent operation and long service life. The AC11 is built using high-grade materials and is intended to meet the demands of everyday engine idle control.

Fitment

• Fits 1992 Chevrolet Cavalier, N/A
• Fits 1992 Chevrolet Corsica, N/A
• Fits 1989-1990 Pontiac LeMans, N/A
• Fits 1989 Geo Spectrum, N/A
• Fits 1987-1988 Buick Skyhawk, N/A
• Fits 1987-1988 Chevrolet Spectrum, N/A
• Fits 1987-1988 Oldsmobile Firenza, N/A
• Fits 1987-1988 Pontiac Sunbird, N/A