OE Quality
60-Day Returns

Standard Ignition AS481 Secondary Air Injection Sensor
Overview of Standard Ignition Secondary Air Injection Sensor AS481
The Standard Ignition Secondary Air Injection Sensor AS481 is designed specifically for Volkswagen vehicles, including the Beetle, Golf, and Jetta models. This sensor plays a critical role in the emission control system by monitoring the secondary air injection process to ensure optimal engine performance and reduced emissions.
- Compatible with Volkswagen Beetle, Golf, and Jetta models
- Part number AS481 for precise identification
- Monitors secondary air injection system for emission control
- Ensures accurate sensor feedback to the engine control unit (ECU)
- Durable construction for reliable long-term operation
Detailed Product Description
The Standard Ignition Secondary Air Injection Sensor AS481 is an essential component in the emission control system of Volkswagen vehicles. It detects the flow and pressure of secondary air injected into the exhaust stream, which helps reduce harmful emissions during cold starts. By providing accurate data to the vehicle’s ECU, this sensor helps maintain compliance with emission standards and supports efficient engine operation. The AS481 sensor is engineered to meet OEM specifications, ensuring proper fitment and function in Volkswagen Beetle, Golf, and Jetta models.
Common Applications and Issues Addressed
- Helps resolve emission control system warning lights related to secondary air injection
- Prevents rough idling caused by faulty air injection readings
- Reduces increased exhaust emissions during cold engine starts
- Addresses engine performance issues linked to secondary air injection malfunctions
- Supports passing vehicle emissions inspections
Installation Notes and Tips
- Ensure vehicle compatibility with Volkswagen Beetle, Golf, or Jetta before installation
- Disconnect the battery prior to sensor replacement to avoid electrical issues
- Use proper tools to remove the old sensor and avoid damage to surrounding components
- Verify sensor connector is securely attached after installation
- Clear any diagnostic trouble codes (DTCs) after replacement to reset the system
Quality Assurance and Warranty
Standard Ignition parts, including the AS481 Secondary Air Injection Sensor, are manufactured to meet or exceed OEM standards. This sensor undergoes rigorous quality control testing to ensure durability and reliable performance. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship to provide confidence in the product’s longevity and function.
| Brand | Standard Ignition |
| Part Number | AS481 |
| Connector Type | Plug In |
| Terminal Gender | Male |
| Terminal Type | Blade |
This part fits 11 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2014 | Volkswagen | Beetle | 2.5L | L5 | N/A | |
| 2014 | Volkswagen | Golf | 2.5L | L5 | N/A | |
| 2014 | Volkswagen | Jetta | 2.5L | L5 | N/A | |
| 2013 | Volkswagen | Beetle | 2.5L | L5 | N/A | |
| 2013 | Volkswagen | Golf | 2.5L | L5 | N/A | |
| 2013 | Volkswagen | Jetta | 2.5L | L5 | N/A | |
| 2012 | Volkswagen | Beetle | 2.5L | L5 | N/A | |
| 2012 | Volkswagen | Golf | 2.5L | L5 | N/A | |
| 2012 | Volkswagen | Jetta | 2.5L | L5 | N/A | From 11/11 |
| 2011 | Volkswagen | Golf | 2.5L | L5 | N/A | Sensor Only |
| 2010 | Volkswagen | Golf | 2.5L | L5 | N/A | Sensor Only |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.