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The P0402 diagnostic trouble code (DTC) is a generic powertrain code related to the vehicle’s exhaust gas recirculation (EGR) system. When this code is triggered, it indicates that the powertrain control module (PCM) has detected excessive EGR flow. This issue can lead to various drivability problems and increased emissions, making it crucial to address promptly. P0402 Code Meaning P0402 Code Common Causes Excessive EGR flow

The P0308 code is a diagnostic trouble code (DTC) that indicates a misfire detected in cylinder 8 of the engine. This code is part of the OBD-II system, which monitors various aspects of a vehicle’s performance. When the powertrain control module (PCM) detects that cylinder 8 is not firing properly, it triggers this code and usually illuminates the check engine light. P0308 Code Meaning P0308

The P0421 trouble code is a diagnostic indicator that points to a potential issue with the catalytic converter efficiency, specifically during the warm-up phase of the engine. This code is part of the On-Board Diagnostics II (OBD-II) system and is commonly encountered in various vehicle makes and models. Understanding this code is crucial for maintaining your vehicle’s performance and ensuring it meets emission standards. P0421

The P0130 code is a diagnostic trouble code (DTC) related to the oxygen sensor circuit in your vehicle. When this code appears, it indicates that the powertrain control module (PCM) has detected an issue with the oxygen sensor or its circuit on bank 1, sensor 1. This sensor is critical for maintaining the proper air-fuel mixture in your engine, which affects both performance and emissions.

The P0193 trouble code is a diagnostic code that indicates a problem with the fuel rail pressure sensor circuit in your vehicle. This code is typically triggered when the engine control module (ECM) detects a signal from the fuel rail pressure sensor that is higher than the expected range. Understanding and resolving this code is crucial for maintaining optimal engine performance and fuel efficiency. P0193

The P0068 code is a diagnostic trouble code (DTC) that indicates a correlation issue between the Manifold Absolute Pressure (MAP) sensor, Mass Airflow (MAF) sensor, and Throttle Position Sensor (TPS). This code is triggered when the engine’s Powertrain Control Module (PCM) detects inconsistent signals from these sensors, potentially affecting engine performance and fuel efficiency. P0068 Code Meaning P0068 Code Common Causes MAP/MAF – Throttle Position

The P0405 trouble code is a common diagnostic indicator that points to issues within a vehicle’s Exhaust Gas Recirculation (EGR) system. Specifically, this code suggests that the EGR sensor circuit is experiencing low voltage, which can lead to various performance problems and increased emissions. Understanding this code and its implications is crucial for maintaining your vehicle’s efficiency and passing emissions tests. P0405 Code Meaning P0405

The P1399 code is a diagnostic trouble code (DTC) that indicates a random cylinder misfire detected in your vehicle’s engine. This code is typically associated with Honda and Acura vehicles, but can also appear in other makes. When your vehicle’s Engine Control Module (ECM) detects an irregular combustion event in one or more cylinders, it triggers the P1399 code and illuminates the Check Engine Light

The P0125 code is a diagnostic trouble code (DTC) that indicates an issue with the engine’s coolant temperature. Specifically, it means “Insufficient Coolant Temperature for Closed Loop Fuel Control.” This code is triggered when the engine control module (ECM) detects that the engine is not reaching its normal operating temperature within a specified time after starting. P0125 Code Meaning P0125 Code Common Causes Engine not

The P0073 trouble code is a diagnostic code that indicates an issue with the Ambient Air Temperature (AAT) sensor circuit in a vehicle. This code specifically points to a high input signal from the AAT sensor, which can affect various vehicle systems and performance. Understanding and resolving this code is crucial for maintaining optimal vehicle operation and preventing potential damage to related components. P0073 Code