When your Kia dashboard warns of a fault and the OBD reader throws the P0146 error, the engine control module indicates this breakdown:
"O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)"
Keep in mind that the severity and repairs for this code depend entirely on the specifications of your Kia, whether diesel, petrol, or hybrid.
Instead of changing parts blindly, use the CarWatch AI assistant. Scan your Kia's sensors in real-time and find out the root cause of the P0146 fault before going to the shop.
👉 Diagnose my Kia for FreeTo clear the engine light and read the P0146 code from your phone, you need an OBD2 adapter compatible with the Kia ECU.
🛒 View Compatible Scanner on Amazon