What is the function of the oil pressure gauge?
1 Answers
The oil pressure gauge, commonly referred to as the oil gauge, indicates the lubricating oil pressure in the main oil passage of the lubrication system when the engine is running. As for the amount of oil in the oil pan, it needs to be measured by the dipstick located next to the engine. Nowadays, most cars use warning lights instead of oil pressure gauges. Relevant information about the intake pressure sensor is as follows: 1. Introduction: The intake pressure sensor (Manifold-Absolute-Pressure-Sensor), abbreviated as MAP. It connects to the intake manifold via a vacuum tube, sensing the vacuum changes in the intake manifold as the engine operates under different speeds and loads. These changes are then converted into voltage signals through alterations in the sensor's internal resistance, which are used by the ECU to adjust fuel injection volume and ignition timing. 2. Working principle: The intake pressure sensor detects the absolute pressure in the intake manifold behind the throttle. Based on the engine speed and load, it detects changes in the absolute pressure within the manifold and converts these into signal voltages sent to the engine control unit (ECU). The ECU uses the magnitude of these signal voltages to control the basic fuel injection volume.
