Standard Ignition AS646 Manifold Absolute Pressure Sensor

Overview of Standard Ignition AS646 Manifold Absolute Pressure Sensor

The Standard Ignition AS646 is a reliable manifold absolute pressure (MAP) sensor designed specifically for Volkswagen Jetta models. This black sensor features a female connector and is engineered to provide accurate pressure readings essential for optimal engine performance.

• Connector Gender: Female
• Color/Finish: Black
• Connector Quantity: 1
• Connector Shape: Round and rectangular
• Connector Type: Plug in
• Hardware Included: No
• Mounting Brackets Included: No
• O-Rings Included: Yes
• Terminal Gender: Male
• Terminal Quantity: 4
• Terminal Type: Blade
• Vacuum Port Quantity: 1
• Wiring Harness Included: No

Detailed Product Description

The Standard Ignition AS646 MAP sensor is engineered to monitor the manifold pressure in Volkswagen Jetta engines accurately. It features a single female plug-in connector with a combination of round and rectangular shapes, ensuring a secure and precise fit. The sensor includes four male blade terminals and one vacuum port, which are critical for transmitting accurate pressure data to the engine control unit (ECU). The black finish provides durability and resistance to environmental factors. Included O-rings help maintain a proper seal during installation, although mounting brackets and hardware are not included.

Applications and Common Issues Addressed

• Helps resolve engine stalling or rough idling caused by incorrect manifold pressure readings
• Addresses poor fuel economy due to inaccurate air-fuel mixture adjustments
• Corrects engine hesitation or lack of power related to faulty MAP sensor signals
• Prevents check engine light triggers associated with emission control sensor faults
• Supports proper turbocharger function in applicable Volkswagen Jetta models

Installation Notes and Tips

• Ensure the female connector aligns properly with the vehicle’s wiring harness before plugging in
• Use the included O-rings to create an airtight seal and prevent vacuum leaks
• Verify that the vacuum port is connected securely to the manifold vacuum line
• Do not reuse old mounting hardware; secure the sensor firmly to avoid vibrations
• Consult the Volkswagen Jetta service manual for torque specifications and sensor location

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The AS646 MAP sensor undergoes rigorous testing to ensure reliable performance in Volkswagen Jetta vehicles. While hardware and mounting brackets are not included, the sensor comes with O-rings to facilitate proper installation. Please refer to Standard Ignition’s warranty policy for coverage details.