P0137 on Kia Sorento
Factory diagnostic protocol and troubleshooting wire for fault code P0137 specifically for the Kia Sorento (2021–2026, 2.5L 4-Cyl (191HP) / 2.5L Turbo (281HP) / 1.6L Turbo Hybrid (227HP)).
1. Symptoms of P0137 on Kia Sorento
When the Engine Control Module (ECM/PCM) on your Kia Sorento (2.5L 4-Cyl (191HP) / 2.5L Turbo (281HP) / 1.6L Turbo Hybrid (227HP)) logs fault code P0137, drivers commonly observe:
2. Most Likely Causes on Kia Sorento
Historical warranty claims and technical repair bulletins for Kia Sorento point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for Kia Sorento
Listen for exhaust ticking or black soot around flex pipe, flanges, and sensor bungs before the catalytic converter. on the Kia Sorento equipped with 2.5L 4-Cyl (191HP) / 2.5L Turbo (281HP) / 1.6L Turbo Hybrid (227HP).
Monitor B1S2 voltage. Snap the throttle to enrich mixture; voltage should briefly spike above 0.8V. If it remains 0.0V–0.1V, sensor is defective or shorted. on the Kia Sorento equipped with 2.5L 4-Cyl (191HP) / 2.5L Turbo (281HP) / 1.6L Turbo Hybrid (227HP).
Unplug harness, remove old sensor with 7/8 socket, install replacement sensor and plug firmly. on the Kia Sorento equipped with 2.5L 4-Cyl (191HP) / 2.5L Turbo (281HP) / 1.6L Turbo Hybrid (227HP).
Clear DTCs and verify B1S2 holds steady between 0.45V and 0.75V during steady highway cruising. on the Kia Sorento equipped with 2.5L 4-Cyl (191HP) / 2.5L Turbo (281HP) / 1.6L Turbo Hybrid (227HP).
Equipment for Diagnosing Kia Sorento (P0137)
Kia Sorento OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for Kia Sorento.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
Other Common Fault Codes on Kia Sorento
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Kia Sorento:
4. Kia Sorento P0137 FAQs
What causes code P0137 to trigger on a Kia Sorento?
On the Kia Sorento (2.5L 4-Cyl (191HP) / 2.5L Turbo (281HP) / 1.6L Turbo Hybrid (227HP)), P0137 is most frequently caused by Exhaust leak upstream of or directly at the Sensor 2 bung letting in fresh air or Faulty downstream oxygen sensor.
Where is the OBD-II port located on my Kia Sorento?
On the Kia Sorento, the 16-pin DLC diagnostic connector is located Under driver side dash above foot pedal cluster. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my Kia Sorento with code P0137?
Yes. Vehicle is fully drivable, but Check Engine Light will remain illuminated. Given that P0137 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.