Standard Ignition AS481 Secondary Air Injection Sensor

Secondary Air Injection Sensor for Volkswagen

Standard Ignition AS481 is a secondary air injection sensor built for emission control service on select Volkswagen applications. It uses a black housing, an oval female connector, and a 3-blade male terminal layout with an included O-ring for a direct-fit style replacement.

Compatible With 2010-2014 Volkswagen Golf, 2012-2014 Volkswagen Beetle, and 2012-2014 Volkswagen Jetta applications, this AS481 sensor supports accurate secondary air system monitoring on the listed vehicles. It is a plug-in design with one vacuum port and no wiring harness, mounting bracket, or hardware included.

• Black finish for a clean OE-style appearance
• Female oval connector with plug-in connection
• 3 male blade terminals for the specified electrical interface
• One vacuum port for secondary air system routing
• O-ring included for sealing at installation
• Standard Ignition AS481 replacement for select Volkswagen emission control repairs

Detailed Product Overview

The Standard Ignition AS481 secondary air injection sensor is used in emission control systems that monitor secondary air flow on the vehicle. For Volkswagen Beetle, Golf, and Jetta applications, this sensor helps restore proper signal input to the secondary air injection system when the original unit is no longer reading correctly. This part cross-references Delphi PS20125 for the same application.

Common Problems This Part Can Address

• Secondary air system fault codes related to sensor signal loss
• Emission monitor failures during inspection readiness checks
• Incorrect secondary air flow readings from a worn sensor
• Driveability issues tied to emission control system faults
• Replacement needs after connector, seal, or sensor deterioration

Installation Notes and Tips

Verify connector shape, terminal style, and vacuum port layout against the original part before installation. The AS481 is a plug-in sensor with no wiring harness or mounting bracket included, so reuse existing vehicle-side components where applicable. Confirm fitment by year and model: Fits 2010-2011 Volkswagen Golf, Sensor Only; Fits 2012-2014 Volkswagen Beetle; Fits 2012-2014 Volkswagen Golf; Fits 2012 Volkswagen Jetta, From 11/11; Fits 2013-2014 Volkswagen Jetta.

Quality Assurance

Standard Ignition is a recognized name in replacement electrical and emission control components. AS481 is built to match the listed connector, terminal, and sealing requirements for the specified Volkswagen applications.