P0327 Knock Sensor 1 Circuit Low (Bank 1 or Single Sensor)

Powertrain Severity: Moderate Generic OBD-II

Knock sensor signal is too low.

Common causes

  • Open circuit
  • Faulty sensor
  • Corroded connector

Symptoms

  • Check engine light
  • Reduced power

What to check

  1. Inspect connector
  2. Check wiring continuity
  3. Replace sensor if faulty

Manufacturers may add their own detail to generic codes. If your vehicle shows a different description for P0327, follow the service information for that make and model.

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