Does the opening of the throttle position sensor of the EFI vehicle not step on the accelerator have to be zero?

The throttle position sensor opening of EFI vehicle can't be zero without stepping on the accelerator, because air intake is needed even at idle speed.

1. is generally lower than a design target value, such as 0.9% opening, which is the upper limit of most designs. If it is exceeded, it may affect the idle speed control. Generally speaking, the engine control design is above 1.4% for partial load and non-idle state.

2. Abnormal situation. If the opening value is higher than 1.4%, the idle speed is gone and the idle speed is very high.

Transducer/sensor (English name: transducer/sensor) is a detection device that can sense the measured information, and can convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control.

The characteristics of sensors include miniaturization, digitalization, intelligence, multifunction, systematization and networking. This is the first step to realize automatic detection and automatic control. The existence and development of sensors make objects have senses such as touch, taste and smell, and make them come alive slowly. Generally, according to its basic sensing function, it can be divided into ten categories: heat sensitive element, light sensitive element, gas sensitive element, force sensitive element, magnetic sensitive element, humidity sensitive element, sound sensitive element, radiation sensitive element, color sensitive element and taste sensitive element.