The further the gas pedal is pressed, the greater tension is set over the throttle valve. Other cars and trucks use a vacuum modulator to apply force on the throttle valve. The modulator senses the manifold stress, which increases once the motor is under a larger load. The World copyright https://gearbox-auto87429.angelinsblog.com/31786564/a-secret-weapon-for-gearbox-kereta-auto