This pressure can be affected by engine speed, throttle opening, air temperature and barometric pressure (BARO). This pressure is affected by the engine speed, throttle position, air temperature and barometric pressure. The Powertrain Control Module uses the MAP signals for ...
Ask4Auto Latest Articles
P0402 Exhaust Gas Recirculation ‘A’ Flow Excessive Detected Fault: What is it?
EGR reduces the temperature of combustion in engines to control nitrogen oxide emissions. Nitrogen oxides are produced when the combustion chamber temperature is too high. EGR helps reduce NOx gas emissions. EGR systems can malfunction just like any other system ...
P2181 Cooling System Performance Fault: What is it?
If the engine temperature is unusually high or low, fault code P2181 will be recorded. The Engine Coolant Temperature sensor (ECT) is responsible for sending the engine temperature information to the Powertrain Control Module. The PCM uses this information to ...
P0406 Exhaust Gas Recirculation (EGR) Sensor A Circuit High Fault: What is it?
The fault code P0406 is ‘Exhaust Gas recirculation (EGR), Sensor A Circuit High.’ When the powertrain control module detects high voltage from the exhaust-gas-recirculation position sensor (EGR), it triggers the fault code P0406. The EGR position sensors detect the position ...
P0405 Exhaust Gas Recirculation Sensor ‘A’ Circuit Low Fault: What is it?
EGR systems are used to control the emission of nitrogen oxides (NOx). The Engine Control Module (ECM), when the sensor that monitors the position of EGR valves sends lower voltage signals than normal, stores the P0405 error code in its ...
P0400 Exhaust Gas Recirculation (EGR) Flow Malfunction Fault: What is it?
The P0400 code is displayed by your OBD-II scan tool if you detect a problem with the Exhaust Gas Recirculation system (EGR). If it detects a lower EGR flow than expected, the Powertrain Control Module stores the P0400 error code ...
P0404 Exhaust Gas Recirculation (EGR) Circuit Range/Performance Fault: What is it?
This indicates that the EGR valve or sensor is operating outside of parameters set by the manufacturer. The EGR sensor or valve is not operating within the parameters set by the manufacturer. The cylinder temperature is lowered, which reduces nitrogen ...
P0332 Knock Sensor 2 Circuit Low Input (Bank 2) Fault: What is it?
The PCM sets the code P0332 and illuminates the fault light when it receives from the knock sensor circuit a voltage lower than that specified by the manufacturer. The knock sensor is designed to alert the PCM to vibrations or ...