Facet 9.3112 Ignition Knock (Detonation) Sensor

Facet 9.3112 Knock Sensor for Nissan and INFINITI

Facet 9.3112 is an ignition knock sensor for select Nissan and INFINITI vehicles from 2000-2005. It is used to monitor engine detonation so the engine control system can adjust timing based on knock input.

Key Features

• Ignition knock (detonation) sensor for emission control and engine management systems
• Direct fitment for select Nissan Altima, Maxima, Sentra, Pathfinder, X-Trail, and INFINITI G35, I30, I35, M45, Q45, QX4, and QX4 applications
• Facet part number 9.3112 for catalog and service reference
• Fits 2000-2005 Nissan and INFINITI applications listed below

Detailed Description

Facet 9.3112 is a replacement knock sensor used on select Nissan and INFINITI engines to detect abnormal combustion events and send a signal to the engine control module. When the sensor input is accurate, the system can respond to detonation conditions and maintain proper ignition control. This part number 9.3112 is listed for 2000-2005 Nissan Maxima, Altima, Sentra, Pathfinder, and X-Trail, as well as INFINITI G35, I30, I35, M45, Q45, and QX4 applications.

What It Helps Address

• Knock sensor fault codes
• Engine pinging or detonation-related drivability concerns
• Reduced ignition timing control from a failed sensor signal
• Check engine light conditions tied to knock sensor circuit issues

Installation Notes and Tips

• Verify the vehicle year, make, and model against the listed fitment before ordering.
• Confirm the sensor location and connector style on the vehicle before removal.
• Inspect the wiring harness and connector for damage when replacing the sensor.
• Clear diagnostic trouble codes after installation and verify proper operation.

Quality Assurance

Facet is an established aftermarket brand in engine management and emission control components. This part cross-references OE-style applications for the same vehicle coverage, including common service references such as 22060-4M500 and 22060-4M50A.