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The P2074 trouble code is a diagnostic trouble code (DTC) that indicates a discrepancy between the readings of the Manifold Absolute Pressure (MAP) sensor and the Mass Air Flow (MAF) sensor in relation to the throttle position at higher loads. This code can trigger various symptoms that affect engine performance, fuel efficiency, and overall vehicle operation. Understanding the P2074 code is crucial for vehicle owners

The P0160 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the oxygen sensor circuit, specifically “O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2).” This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various components of a vehicle’s engine and emissions systems. When the Powertrain Control Module (PCM) detects that the downstream oxygen sensor on

The P0752 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the automatic transmission’s shift solenoid A, specifically that it is “stuck on.” This code is commonly found in vehicles equipped with automatic transmissions and is associated with the vehicle’s powertrain control module (PCM) detecting an abnormality in the operation of the shift solenoid. The solenoid plays a crucial role in

The P2104 trouble code is a diagnostic trouble code (DTC) that indicates a problem with the Throttle Actuator Control System, specifically that the system has entered a forced idle state. This occurs when the Powertrain Control Module (PCM) detects a malfunction in the throttle actuator control (TAC) system, which is responsible for regulating the engine’s throttle position based on driver input. When this code is

The P1120 trouble code is a diagnostic trouble code (DTC) that indicates a problem with the throttle position sensor (TPS). Specifically, it signifies that the throttle position sensor’s input does not match what the vehicle’s powertrain control module (PCM) expects. This discrepancy can lead to various performance issues, including erratic engine behavior and poor acceleration. Understanding this code is crucial for vehicle owners and DIY

The P1421 trouble code is a manufacturer-specific diagnostic code related to the engine’s cold start control system. When this code is triggered, it indicates that the engine control module (ECM) has detected an issue with the engine’s ability to maintain proper idle speed and ignition timing during cold start conditions. Understanding and resolving this code is crucial for maintaining optimal engine performance and emissions control.

The P0748 trouble code indicates an issue with the Pressure Control Solenoid “A” in a vehicle’s automatic transmission system. This code is part of the OBD-II diagnostic system, which monitors various components of the vehicle to ensure optimal performance. When the Powertrain Control Module (PCM) detects an electrical malfunction in the solenoid, it triggers the P0748 code, which can lead to significant drivability issues if

The P20B9 diagnostic trouble code (DTC) is a generic powertrain code that applies to many diesel vehicles equipped with OBD-II systems, typically those manufactured from 1996 onwards. This code is related to the Selective Catalytic Reduction (SCR) system, specifically indicating an issue with the reductant heater control circuit. P20B9 Code Meaning P20B9 Code Common Causes Reductant Heater “A” Control Circuit Open Faulty reductant heater Issue

The P0358 diagnostic trouble code (DTC) is a generic powertrain code related to ignition system issues. It specifically indicates a problem with the primary or secondary circuit of ignition coil “H,” which typically corresponds to cylinder #8 in many engine configurations. When the vehicle’s powertrain control module (PCM) detects an abnormality in the ignition coil’s electrical circuit, it triggers this code and usually illuminates the

The P1406 trouble code is a diagnostic trouble code (DTC) that indicates an issue with the Exhaust Gas Recirculation (EGR) valve position sensor circuit. This code is manufacturer-specific and is commonly found in vehicles from brands such as Ford, GM, and Isuzu. The EGR system plays a crucial role in reducing nitrogen oxide (NOx) emissions by recirculating a portion of the exhaust back into the