TorqueMech OBD Code Guide
P0328 - Knock Sensor 1 Circuit High Input (Bank 1)
Knock sensor 1 signal is too high on bank 1.
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Code Overview
Knock sensor 1 signal is too high on bank 1.
Common Causes
- Open circuit
- Sensor fault
- Wiring issue
- Excessive noise or detonation
Diagnostic Steps
- Inspect for an open or broken sensor lead
- Check for true spark knock under load
- Verify connector fit and harness condition
Related OBD Codes
Browse nearby codes when systems overlap.
Next Steps
Move from code to checks, then estimate.