![]() ![]() The PCM uses the FRP signal to command the correct injector timing and pulse width for correct fuel delivery at all speed and load conditions. The FRP sensor is located on the fuel rail and provides a feedback signal to indicate the fuel rail pressure to the Powertrain Control Module ( PCM). A disabled or malfunctioning dome light does not affect the FP module control. The FP module is energized at the same time the dome light is commanded on. This condition is normal and is usually the case after several hours of cold soak before the vehicle dome light is turned on. The sensor can read vacuums and may lower the output voltage to slightly below 0.5 volts. The FRP sensor nominal output varies between 0.5 and 4.5 volts, with 0.5 volts corresponding to 0 MPa (0 psi) gauge and 4.5 volts corresponding to 26 MPa (3771 psi) gauge. The FRP sensor measures the pressure difference between the fuel rail and atmospheric pressure. The Fuel Rail Pressure (FRP) Sensor is a diaphragm strain gauge device. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |