The fuel tank pressure sensor is part of the fuel pump assembly ... The sensor is connected to the engine computer, and when the sensor detects a leak, or if the sensor itself fails, it ...

This pressure reading is shared with the engine control module to determine how much fuel needs to be fed to each cylinder, as well as to determine ignition timing. A fully functioning MAP sensor ...

manifold absolute pressure sensor, or the exhaust gas recirculation sensor) can also skew the ECU's fuel calculations. When diagnosing a lean engine, technicians will start by checking the vehicle ...

The MAP sensor monitors the air pressure inside the engine's air intake manifold and sends that data to the ECM. The computer then uses the information to augment the amount of fuel that the ...