Code PCM: P01xx - causes, symptoms, and solutions

Air-Fuel Mixture & Sensors ECU fault codes ECU, Electrical & CAN Emission Control Engine Sensors & Timing

Code P0137: full description, causes, and solutions

17.03.2026 Daniel Brooks

The information provided is general and does not replace professional consultation. Code P0137 is one of the most common OBD-II codes indicating low voltage in the rear oxygen sensor circuit…

Air-Fuel Mixture & Sensors ECU fault codes ECU, Electrical & CAN Emission Control

Code P0135: what it means, causes, and how to fix it yourself

27.02.2026 Daniel Brooks

Code P0135 is a diagnostic indicator that the oxygen sensor heater circuit for Bank 1 Sensor 1 is not functioning as expected by the PCM. The sensor located before the…

Air Intake & Throttle Air-Fuel Mixture & Sensors ECU fault codes ECU, Electrical & CAN

Code P0106: meaning, causes, symptoms, and how to fix it

27.02.2026 Daniel Brooks

Code P0106 indicates an incorrect signal from the manifold absolute pressure (MAP/BARO) sensor, affecting fuel calculation and engine operation. Below is a quick overview, step-by-step diagnostics, and solutions from simple…

Air-Fuel Mixture & Sensors ECU fault codes Fuel System

Code P0174: meaning, causes, and how to fix

24.02.2026 Daniel Brooks

Code P0174 is a signal from the PCM indicating that the air-fuel mixture has become too lean on bank 2. Simply put, the engine is receiving more air than necessary…

Cooling System ECU fault codes Engine Sensors & Timing

Code P0128: meaning, causes, symptoms, and how to fix it

24.02.2026 Daniel Brooks

“Over years of experience, I have seen hundreds of P0128 cases, and in most instances, the cause is the thermostat stuck in the open position. However, it is crucial to…

Air-Fuel Mixture & Sensors ECU fault codes Emission Control Fuel System

Code P0172: meaning, symptoms, causes, and how to fix it (step by step)

11.02.2026 Daniel Brooks

The information provided is general and does not replace professional consultation. “Most people see the P0172 code and immediately think of a faulty oxygen sensor or MAF. But in reality,…

Air-Fuel Mixture & Sensors ECU fault codes Emission Control

Code P0133: meaning, causes, and how to fix it yourself

07.02.2026 Daniel Brooks

Code P0133 indicates a “slow response” from the oxygen sensor (Bank 1, Sensor 1). This impairs fuel mixture control, increases fuel consumption, and can accelerate catalytic converter wear. Below are…

Air Intake & Throttle Air-Fuel Mixture & Sensors ECU fault codes ECU, Electrical & CAN

Code P0113: meaning, causes, and how to fix it

07.02.2026 Daniel Brooks

OBD-II code P0113 indicates a “high signal level in the intake air temperature (IAT) sensor circuit.” When the control module detects a voltage above 4.91 V for 0.5 seconds or…

Air Intake & Throttle ECU fault codes ECU, Electrical & CAN

Code P0123: interpretation, causes, diagnosis, and repair

06.02.2026 Daniel Brooks

The information is general and does not replace professional consultation. Code P0123 is a diagnostic signal from the PCM indicating that the voltage in the throttle position sensor circuit exceeds…

Air-Fuel Mixture & Sensors ECU fault codes ECU, Electrical & CAN Emission Control

Code P0130: meaning, causes, and how to fix

05.02.2026 Daniel Brooks

When the Check Engine light illuminates on the dashboard and the scanner shows code P0130, many immediately think: “oxygen sensor problem.” But this is just the tip of the iceberg.…

Code P0137: full description, causes, and solutions

Code P0135: what it means, causes, and how to fix it yourself

Code P0106: meaning, causes, symptoms, and how to fix it

Code P0174: meaning, causes, and how to fix

Code P0128: meaning, causes, symptoms, and how to fix it

Code P0172: meaning, symptoms, causes, and how to fix it (step by step)

Code P0133: meaning, causes, and how to fix it yourself

Code P0113: meaning, causes, and how to fix it

Code P0123: interpretation, causes, diagnosis, and repair

Code P0130: meaning, causes, and how to fix

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