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Knock Sensor Wire Harness Assy
Knock Sensor Sub-Wiring Harness

🔵 DESCRIPTION
• Replacement electrical wire harness for the engine knock sensor circuit.
• Connects the knock sensor circuit to the vehicle engine wiring system.
• Designed to replace a damaged, brittle, corroded, or deteriorated original harness.
• Includes the required connectors, protective loom, and mounting clips.

🔵 FUNCTIONS
• Provides the electrical connection between the knock sensor and the engine wiring system.
• Carries the knock sensor signal to the Engine Control Module (ECM / ECU).
• Helps maintain a stable and reliable knock sensor signal.
• Supports proper ignition timing adjustment when abnormal combustion is detected.
• Helps restore proper knock sensor circuit operation when the original harness is damaged.

🔵 COMMON ERROR CODES
• P0325 – Knock Sensor 1 Circuit Malfunction.
• P0327 – Knock Sensor 1 Circuit Low Input.
• P0328 – Knock Sensor 1 Circuit High Input.
• Diagnostic codes may vary depending on vehicle condition and related components.

🔵 COMMON SYMPTOMS
• Check Engine Light illuminated.
• Knock sensor related diagnostic trouble codes.
• Intermittent knock sensor signal.
• Reduced engine performance.
• Poor acceleration or hesitation.
• Reduced fuel economy.
• Damaged, loose, or corroded wiring connectors.

🔵 BENEFITS
• Helps restore a reliable knock sensor electrical connection.
• Helps reduce wiring-related knock sensor faults.
• Helps maintain proper ignition timing control.
• Helps support normal engine performance and efficiency.
• Direct replacement style harness for convenient installation.

🔵 PACKAGE INCLUDES
• 1 x Knock Sensor Wire Harness Assembly.
• Integrated electrical connectors and mounting clips.
• New replacement harness assembly.

🔵 IMPORTANT NOTES
• This listing is for the wire harness assembly only; knock sensor is not included unless otherwise stated.
• Harness includes the knock sensor connection, engine harness connection, and associated intermediate/junction connection where applicable.
• Professional installation is recommended.
• Inspect the knock sensor and mating engine wiring connectors before installation.
• Clear diagnostic trouble codes after repair when required.
• Wire colors and minor appearance details may vary by production batch.

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