P0325moderate severityPowertrain

Knock Sensor 1 Circuit Bank 1

on 2017 Maserati Levante 3.0L V6 Twin Turbo ยท AWD

What this code means

Malfunction in the knock sensor 1 circuit for Bank 1. The knock sensor detects engine detonation/pinging and allows the PCM to retard timing.

Symptoms

  • Check Engine Light
  • Reduced power (timing retarded)
  • Possible pinging/knocking
  • Poor fuel economy

Common causes

  • Faulty knock sensor
  • Wiring damage
  • Incorrect torque on sensor
  • PCM failure
  • Engine noise masking knock signal

Diagnostic steps

  1. Test knock sensor resistance
  2. Inspect wiring and connector
  3. Check sensor mounting torque
  4. Monitor knock signal with scan tool

Repair notes

Replace knock sensor. Torque to spec (important). Use correct sensor for application.

Other Powertrain codes on this vehicle

๐Ÿ”ง Database maintained under the daily editorial review of Chris Hackleman ยท Master Technician ยท 20+ years. Spot an error? Use the Help link above โ€” a human reads every report.
Stuck on this repair? Take it to The Diag Desk โ€” ask a master tech about this exact car โ†’ real human answer within 24h, never AI
๐Ÿ”“ LIBERATED FOREVER
The 2017 Maserati Levante 3.0L V6 Twin Turbo repair data is free for every DIYer and shop on earth, permanently, because michael gonzales, texas paid $99 to unlock it.
Mitchell1 charges $169/mo for this. ALLDATAdiy charges $30/yr per vehicle. Open Labor Project is free permanently, because of community sponsors like michael.
Free another vehicle โ†’
Building an app?
Free API access to all this data โ€” 10 requests/day, no card required.
Get an API key โ†’
Run a shop?
Manage repairs, estimates, and customers with ShopBase โ€” $249/mo, all features included.
Try ShopBase โ†’