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Standard Ignition AC81 Idle Air Control Valve
| Brand | Standard Ignition AC81 |
|---|---|
| Terminal Type | Blade Terminals |
| Fits | Nissan · 10 vehicles |
Idle air control valve. Regulates idle airflow for smoother engine operation.
Female connector. Single-connector design with three hose ports and blade terminals.
Cross-references Gates 22917, Standard Ignition AC81 and Standard Ignition AC479 for the same application. See all 5.
Idle Air Control Valve for Nissan Altima
Standard Ignition AC81 is an idle air control valve for select Nissan Altima applications with Federal Emissions. It is built with a female connector, one connector interface, three hose connections, and blade terminals for the specified electrical and vacuum routing. This part number also cross-references Gates 22917 for the same application.
Key Features
- Idle Air Control Valve for air and fuel delivery systems
- Female connector with 1 connector interface
- 3 hose connectors for the listed vacuum routing
- 4 male blade terminals for the electrical connection
- Fits 1993-1995 Nissan Altima and 1996-1997 Nissan Altima with Federal Emissions
- Standard Ignition AC81 / AC479 interchange reference
Detailed Description
Standard Ignition AC81 is an idle air control valve used to regulate bypass air at idle on select Nissan Altima models. For 1996-1997 Nissan Altima vehicles with Federal Emissions, it is listed as the primary option and also as an auxiliary air valve application. For 1993-1995 Nissan Altima models, it serves as the primary idle air control valve application. The connector and terminal layout should be matched to the original unit before installation. Standard Ignition AC81 is also referenced under AC479 for interchange purposes.
Common Issues It May Address
- Unstable or fluctuating idle speed
- Idle speed that is too high or too low
- Stalling when coming to a stop
- Idle control response problems after warm-up
- Air bypass control faults in Federal Emissions Nissan Altima applications
Installation Notes and Tips
Verify the vehicle’s emissions configuration, connector style, terminal count, and hose connection layout before ordering. Fits 1993-1995 Nissan Altima, N/A, and fits 1996-1997 Nissan Altima, N/A, with Federal Emissions noted in the application data. Compare the original part number AC81 and the interchange reference AC479 to confirm the correct replacement for your Nissan Altima.
Quality Assurance
Standard Ignition is a recognized aftermarket brand for ignition and engine management components. This part is identified by OE-style application data and interchange references to support accurate replacement selection for the listed Nissan Altima models.
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1997 | Nissan | Altima | Automatic | 2.4L | L4 | N/A | Idle Air Control Valve fits vehicles with Federal Emissions and is the primary option. |
| 1997 | Nissan | Altima | Automatic | 2.4L | L4 | N/A | w/ Federal Emissions: Auxiliary Air Valve |
| 1996 | Nissan | Altima | Automatic | 2.4L | L4 | N/A | Idle Air Control Valve fits vehicles with Federal Emissions and is the primary option. |
| 1996 | Nissan | Altima | Automatic | 2.4L | L4 | N/A | w/ Federal Emissions: Auxiliary Air Valve |
| 1995 | Nissan | Altima | Automatic | 2.4L | L4 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 1995 | Nissan | Altima | — | 2.4L | L4 | N/A | Compatible with various car models. |
| 1994 | Nissan | Altima | Automatic | 2.4L | L4 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 1994 | Nissan | Altima | — | 2.4L | L4 | N/A | Compatible with various car models. |
| 1993 | Nissan | Altima | Automatic | 2.4L | L4 | N/A | Primary application for specific vehicle models ~ Idle Air Control Valve |
| 1993 | Nissan | Altima | — | 2.4L | L4 | N/A | Compatible with various car models. |
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