P0328: Knock Sensor 1 Circuit High Input (Bank 1 or Single Sensor)
Possible Causes
- Faulty ignition coil or spark plug
- Fuel delivery issues (clogged injector or low pressure)
- Wiring or connector issues in the ignition circuit
- Vacuum leaks or intake manifold issues
- Faulty engine control module (ECM)
Diagnosis and Repair
- Use a scanner to identify the misfiring cylinder
- Inspect spark plugs and ignition coils for wear or damage
- Check fuel injector operation and fuel pressure
- Inspect wiring and connectors for faults
- Replace faulty components (spark plugs, coils, or injectors)
- Clear codes and perform a test drive
Related Error Codes
See also: P0300, P0301, P0302, P0303, P0304
Keywords: 1, sensor, fuse and relay guide, (bank, input, relay diagram, automotive wiring, knock, fuse replacement guide, high, circuit, vehicle fuse box, single, p0328:, car electrical system, ECU error codes, fuse box diagram, fuse panel layout, car fuse types, sensor), or, electrical troubleshooting
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