How to deal with throttle position correlation

When the throttle position is aligned, remove the throttle, clean the throttle, and then reinstall it. Be sure to thoroughly clean the front and rear sides of the throttle. The manifold absolute pressure (MAP) sensor is used to measure the pressure (vacuum degree) in the intake manifold. The powertrain control module (PCM) will then determine the basic fuel injection quantity of the injector based on the difference between the intake manifold pressure and the atmospheric pressure (which is linearly related to the engine load), thus helping the engine to achieve the best air-fuel ratio under different loads.