P0325
System
Powertrain (Engine)
Scanner som krävs
Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

Knock Sensor 1 Circuit Malfunction

Understand P0325, common causes, and the right FOXWELL scanner to diagnose it.

Knock sensor signal missing or out of range — ECU may retard timing and reduce performance.

Vanliga symptom

  • Reduced power
  • Ping under load if sensor ignored
  • Check engine light

Typiska orsaker

  • Failed knock sensor
  • Wiring damage
  • Sensor not torqued correctly
  • ECU input fault

Vilken scanner behöver du?

Enhanced OBD2 scanner (live data graphs, freeze frame, battery voltage test)

Använd live-data och freeze frame innan du byter delar. ABS-, SRS- och U-koder kräver oftast en fullsystems-scanner.

Diagnostiktips

  • Spara freeze frame när koden först sätts
  • Rensa koden först efter att orsaken är åtgärdad
  • Kontrollera relaterade väntande koder
  • Verifiera batterispänning över 12,4 V innan du misstänker sensorer

Rekommenderade FOXWELL-scannrar

Vanliga frågor

Can I diagnose P0325 with a basic code reader?
P0325 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with P0325?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.