P1327: Cylinder 3 Knock Control Limit Attained
2 vehicles · 1 makes
Most Reported On
P1327 is an OBD-II diagnostic trouble code meaning “Cylinder 3 Knock Control Limit Attained.” An Audi/Volkswagen manufacturer-specific code. The engine control module retards ignition timing on cylinder 3 whenever the knock sensor hears detonation, and this code sets when it has pulled all the timing it is allowed to and the knocking continues. Sustained detonation can damage pistons and rod bearings, so it should not be ignored. Be aware that Hyundai/Kia use P1327 alongside P1326 as a Knock Sensor Detection System (KSDS) fault indicating possible connecting-rod bearing wear - a far more serious, limp-mode condition - and some other applications list P1327 as a knock sensor 2 circuit low input. The make changes both the meaning and the urgency. This code is most commonly reported on 2021-2023 Kia Seltos, and 2020-2023 Kia Soul.
Common Causes
Diagnostic Tools
P1327 does not use the standard P/B/C/U prefix. It may be a manufacturer-specific code, so verify that a scanner supports your exact year, model and module before buying.
FAQ
What does P1327 mean?
P1327 stands for "Cylinder 3 Knock Control Limit Attained." An Audi/Volkswagen manufacturer-specific code. The engine control module retards ignition timing on cylinder 3 whenever the knock sensor hears detonation, and this code sets when it has pulled all the timing it is allowed to and the knocking continues. Sustained detonation can damage pistons and rod bearings, so it should not be ignored. Be aware that Hyundai/Kia use P1327 alongside P1326 as a Knock Sensor Detection System (KSDS) fault indicating possible connecting-rod bearing wear - a far more serious, limp-mode condition - and some other applications list P1327 as a knock sensor 2 circuit low input. The make changes both the meaning and the urgency.
What are the most common causes of P1327?
The most common causes of P1327 are: Low-octane, contaminated, or wrong-grade fuel, Carbon buildup in the combustion chamber raising effective compression, Ignition or fuel fault on cylinder 3 (worn plug, weak coil, dirty injector), Faulty or improperly torqued knock sensor, Damaged knock sensor shielding, wiring, or connector, Overheating or a cooling system problem, Lean condition on cylinder 3 from a vacuum leak. The specific cause varies by vehicle.
How much does it cost to fix P1327?
Repair costs vary widely depending on the root cause and vehicle.
Which vehicles are affected by P1327?
Au7o has documented P1327 across 2 vehicle models from 1 manufacturers: Kia.
Sources (6)
- investigationNHTSA Audit Query AQ25001 - Recall 25V099 Remedy Effectiveness
- RecallKia Seltos Owner Notice for Recall 25V099 / SC336
- RecallNHTSA Campaign 25V099000
- RecallNHTSA Campaign 21V259000 - Soul Piston Oil Rings
- TSBKia TSB SST082 - Piston Noise Sensing System Inspection
- RecallPart 573 Safety Recall Report 25V099
Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.