Intake pressure sensors are typically connected to the intake manifold through a vacuum hose and are capable of sensing changes in the vacuum level within the intake manifold under varying engine speeds and load conditions. This sensing ability allows the intake pressure sensor to capture critical information when the engine is running.
As the vacuum level changes, the internal resistance of the sensor changes accordingly. This change is converted into a voltage signal that is critical to the engine control unit (ECU).
The ECU relies on this signal to accurately correct the injection rate and ignition timing angle to ensure that the engine burns efficiently and minimizes emissions under all operating conditions.
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