2016 Kia P0325: What It Means & Is It Safe to Drive?
P0325 on the 2016 Kia: Knock Sensor 1 Circuit Malfunction (Bank 1). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
What this code means
The PCM isn't receiving a valid signal from knock sensor 1. Without knock feedback, the PCM retards ignition timing as a safety measure, reducing power and economy.
Common causes on the 2016 Kia
- Failed knock sensor
- Corroded or broken wiring/connector at the sensor
- Actual engine knock from carbon buildup or low-octane fuel
Symptoms
- Check Engine Light
- Reduced power and fuel economy (PCM retards timing)
- Possible audible knock or ping under load
Typical fixes
- Replace knock sensor
- Repair wiring and connector
- Use correct octane fuel and address carbon buildup
Repair cost range
For a 2016 Kia, repairs for P0325 typically fall between $150 and $500, depending on the root cause and labor rates in your area.
Known issues on Kia
Kia P0325 on Theta II engines carries the same concern as Hyundai—a non-functional knock sensor on a Theta II 2.4L with the rod bearing recall issue means the engine has no detonation protection. Check Kia's recall status on your VIN first. On Stinger 3.3T twin-turbo V6, the knock sensors (Bank 1 and Bank 2) are accessible on the side of the block; replacement is straightforward. Kia knock sensors use a torque-sensitive mounting—always torque the new sensor to specification or it will read incorrectly.
Most commonly affected models