Jan 7, 2023 · When your car's check engine light comes on and you see the code P0138, don't panic! This article will help you understand what it is and how to fix it.

Aug 30, 2024 · What are the possible causes of OBDII code P0138? - Possible causes include a faulty O2 sensor, wiring issues in the sensor circuit, exhaust leaks, or a problem with the engine's fuel system.

Dec 29, 2025 · The P0138 code indicates a high voltage condition in the O2 sensor circuit for bank 1 sensor 2, leading to a rich air-fuel mixture. Common causes of the P0138 code include sensor …

Feb 9, 2024 · When your check engine light comes on, it’s never a welcome sight. One of the common trouble codes I’ve encountered is P0138, and if you’re dealing with it, you need to understand what it …

Mar 3, 2022 · Check engine light code P0138 means O2 Sensor Circuit High Voltage (Bank 1, Sensor 2). Find out how to fix it in this article!

Description of vehicle trouble code P0138 - Oxygen Sensor Circuit High Voltage (Bank1, Sensor2)

Dec 19, 2024 · What does the P0138 Oxygen Sensor Circuit High Voltage (Bank 1, Sensor 2) mean? P0138 code gets triggered when the Engine Control Module detects that the voltage from the oxygen …

May 27, 2024 · Is your vehicle triggering a P0138 trouble code on your OBD-II scanner? If so, read on to find out what this code means, what the symptoms and possible causes are, and how you can …

Learn about P0138 symptoms, causes, and potential solutions from the diagnostic experts at RepairPal.

Nov 15, 2024 · Here's what you need to do if your engine is showing error code P0138, which is triggered when the engine control module detects a high voltage signal from the oxygen sensor on …