Traditional Culture Encyclopedia - The 24 Solar Terms - Why is the intake pressure sensor of Audi 1.8T engine between intercooler and throttle body?
Why is the intake pressure sensor of Audi 1.8T engine between intercooler and throttle body?
Audi 1.8T engine, turbocharged, intercooled.
The air passes through the filter and enters the compressor end of the turbine. The intake pressure at this time is not the intake pressure of the engine, but also passes through the intercooler. Air enters the combustion chamber after coming out of the intercooler, so the intake pressure sensor is between the intercooler and the throttle body.
The intake pressure sensor detects the absolute pressure of the throttle valve and the intake manifold behind the valve. It detects the change of the absolute pressure in the manifold according to the engine speed and load, and then converts it into a signal voltage and sends it to the electronic controller (ECU). The ECU controls the basic fuel injection quantity according to the signal voltage.
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