Engine performance is dependent on ignition timing and the air-fuel ratio. The Engine Control Module (ECM/PSM) calculates both using information transmitted by various sensors, such as air intake, fuel injection, engine, and exhaust systems.The MAP or BARO sensor measures the ...
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P0161 Oxygen Sensor Heater Circuit Malfunction (Bank 2, Sensor 2) Fault: What is it?
The fault code P0161 is a “Malfunction of the Oxygen sensor Heater Circuit” (Bank 2, Sensor 2). Bank 2, Sensor 2 will alert you to an issue with the heater circuit for the oxygen (O2) sensors. Modern oxygen sensors are ...
P0068 MAP/MAF – Throttle Position Correlation Fault: What is it?
Different sensors monitor the air intake of an engine. The MAP sensor measures air pressure inside the intake manifold. The MAF sensor calculates engine air flow volume, and the TPS sensor shows the position of throttle plate within the throttle ...
P0720 Output Shaft Speed (OSS) Sensor Circuit Malfunction Fault: What is it?
The on-board diagnostics system (OBD), which is installed in your vehicle, detects and saves 5-character fault codes to its memory. This allows you to identify possible faults in the vehicle and their causes. When the powertrain control or transmission control ...
P0087 Fuel Rail System Pressure Too Low Fault: What is it?
Fuel pressure is transferred from the fuel tank to the engine through the fuel line. Engine Control Modules (ECM/PCMs) regulate pressure levels by adjusting fuel pumps or fuel volume regulators, depending on how the fuel system is designed. The ECM ...