Global Parts 1811755 Ignition Knock (Detonation) Sensor

Overview of Global Parts Ignition Knock Sensor 1811755

The Global Parts Ignition Knock (Detonation) Sensor 1811755 is designed for precise detection of engine knock in select Nissan and INFINITI vehicles. This sensor helps maintain optimal engine performance by monitoring detonation and sending accurate signals to the engine control unit.

• Length: 1.89 inches for compact and secure fitment
• Blade terminal type with 2 terminals for reliable electrical connection
• Single female rectangular connector for straightforward installation
• Mounting hardware not included, allowing use of existing fasteners
• Compatible with multiple Nissan and INFINITI models including Altima, Maxima, Sentra, G35, and QX4

Detailed Product Description

The Global Parts 1811755 ignition knock sensor features a 1.89-inch length, making it suitable for tight engine compartments in vehicles such as the Nissan Pathfinder and INFINITI M45. It uses a blade terminal type with two terminals, ensuring a stable electrical connection that accurately detects engine knock or detonation. The sensor includes one female rectangular connector, simplifying the wiring harness connection process. While mounting hardware is not included, this sensor is designed to fit directly into the factory mounting location using existing bolts or screws.

Compatible Vehicles and Applications

This ignition knock sensor is compatible with a range of Nissan and INFINITI models, including:

• Nissan Altima, Maxima, Sentra, Pathfinder, QX4
• INFINITI G35, I30, I35, M45, Q45

Using the correct sensor like the Global Parts 1811755 ensures accurate knock detection, which is critical for engine timing adjustments and preventing potential damage.

Common Issues Addressed by This Sensor

• Engine knocking or pinging under acceleration
• Reduced fuel efficiency due to improper ignition timing
• Check engine light triggered by knock sensor fault codes
• Engine hesitation or rough idling caused by detonation
• Potential engine damage from undetected knock events

Installation Notes and Tips

• Verify vehicle compatibility with Nissan or INFINITI models listed before installation
• Use existing mounting hardware as this sensor does not include bolts or screws
• Ensure the connector is securely attached to avoid intermittent signals
• Handle the sensor carefully to avoid damage to the blade terminals or connector
• Consult vehicle service manual for torque specifications and sensor location

Quality Assurance and Warranty

Global Parts manufactures this ignition knock sensor to meet OEM specifications for fit and function. While mounting hardware is not included, the sensor undergoes quality checks to ensure reliable performance. Please refer to Global Parts’ warranty policy for coverage details related to the 1811755 part number.