Standard Ignition KS303 Ignition Knock (Detonation) Sensor

Overview of Standard Ignition KS303 Knock Sensor

The Standard Ignition KS303 Ignition Knock (Detonation) Sensor is designed for precise detection of engine knock in select Saab and Subaru models. This sensor helps maintain optimal engine performance by monitoring detonation and sending accurate signals to the engine control unit.

• Direct bolt mount attachment for secure installation
• Metal and plastic construction for durability
• Rectangular plug-in connector with one female connector and two male blade terminals
• Compatible with Saab 9-2X and Subaru Forester, Impreza, Legacy, Outback, WRX, and WRX STI
• Part number KS303 for easy identification and replacement

Detailed Product Description

The KS303 knock sensor from Standard Ignition is engineered to detect engine detonation by sensing vibrations caused by knocking. It features a direct bolt mount design that ensures a stable and reliable fitment on compatible vehicles. The sensor includes a rectangular plug-in connector with one female connector and two male blade terminals, facilitating straightforward electrical connections. Constructed from metal and plastic materials, this sensor balances durability with precise functionality. The KS303 is specifically designed for use in Saab 9-2X and a range of Subaru models including Forester, Impreza, Legacy, Outback, WRX, and WRX STI, making it a suitable replacement part for these vehicles.

Common Applications and Issues Addressed

• Detects engine knock to prevent potential damage
• Helps improve fuel efficiency by optimizing ignition timing
• Reduces engine noise caused by detonation
• Prevents check engine light triggers related to knock sensor faults
• Supports overall engine performance and longevity

Installation Notes and Tips

Installation of the Standard Ignition KS303 sensor requires direct bolt mounting to the engine block. Ensure the mounting surface is clean and free of debris before installation. The sensor’s rectangular plug-in connector should be securely connected to the vehicle’s wiring harness, matching the female connector to the male terminals. No mounting hardware is included, so use the existing bolts or appropriate replacements. Proper torque specifications should be followed to avoid sensor damage or improper function.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, ensuring reliable performance and fitment. The KS303 knock sensor undergoes rigorous testing to verify its durability and accuracy. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Refer to the product documentation for exact warranty terms.