HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsStandard Ignition AC573 Idle Air Control Valve
Part #: AC573

Standard Ignition AC573 Idle Air Control Valve

2 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Nissan, Altima
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Reliable Idle Air Control Valve for Nissan Altima

The Standard Ignition AC573 Idle Air Control Valve is designed specifically for Nissan Altima models, ensuring precise control of engine idle speed. This component features a female connector design and multiple terminals for secure electrical connections, making it a dependable choice for maintaining smooth engine performance.

Key Features of Standard Ignition AC573

  • Connector Gender: Female; female for reliable plug-in connections
  • Connector Quantity: 2 connectors to interface with the vehicle's wiring harness
  • Hose Connector Quantity: 1 hose connector for proper air flow management
  • Terminal Gender: Male terminals for secure electrical contact
  • Terminal Quantity: 2 + 2 terminals to support stable electrical signals
  • Terminal Type: Blade terminals designed for durability and ease of installation

Detailed Product Description

The Standard Ignition AC573 Idle Air Control Valve is engineered to regulate the amount of air bypassing the throttle plate in Nissan Altima vehicles. This regulation is critical for maintaining consistent engine idle speed under varying conditions such as engine load and temperature changes. Featuring two female connectors and a single hose connector, this valve integrates seamlessly with the vehicle’s fuel injection system. The blade-type male terminals provide a secure and corrosion-resistant electrical connection, ensuring reliable operation over time.

Common Issues Addressed by This Idle Air Control Valve

  • Irregular or fluctuating engine idle speed
  • Engine stalling during idle or low-speed operation
  • Difficulty starting the engine or rough idle after startup
  • Check engine light triggered by idle control faults
  • Reduced fuel efficiency due to improper air-fuel mixture at idle

Installation Notes and Tips

  • Ensure the vehicle is turned off and cooled before installation
  • Disconnect the battery to prevent electrical shorts during replacement
  • Carefully disconnect the two female connectors and one hose connector
  • Inspect the blade terminals for corrosion or damage before installation
  • Securely fasten all connectors to avoid air leaks or electrical issues

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The AC573 Idle Air Control Valve undergoes rigorous quality control testing to ensure durability and reliable performance in Nissan Altima vehicles. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship.

BrandStandard Ignition
Part NumberAC573
Terminal TypeBlade

This part fits 2 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2001NissanAltimaAutomatic2.4LL4N/APrimary application for specific vehicle models ~ Idle Air Control Valve
2001NissanAltimaAutomatic2.4LL4N/ACompatible with various car models.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

2-31000237819E001250022H125473-4582AC4224

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.