Powertrain
generic / SAE
P0328
Knock Sensor 1 Circuit High Input (Bank 1)
The knock sensor signal voltage is above the expected range. Often caused by a sensor producing excess output due to mechanical noise (loose mounting, accessory drive vibration) rather than a sensor fault.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number3 / 28
Possible causes
- Mechanical noise picked up by sensor (loose accessory) medium
- Signal wire shorted to supply voltage medium
- Sensor failed low
Symptoms
- Check engine light on
- Power loss from defensive spark retard
- Increased fuel consumption
- Possible audible pinging under load
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–800 €
- Estimated time: 1.5–6 h
- Component: knock sensor
- Component: knock sensor wiring
- MIL / check engine light
- emissions-relevant
- drive cycle required
Sources
References
sae:J2012