Pressure sensor signal error causes:
< br >
1, the sensor internal line break or short circuit;
< br >
2, the sensor output signal can not change with the change of the vacuum degree of the intake pipe;
< br >
3, the sensor output signal voltage is too large or too small, its value deviates from the normal range;
< br >
In addition, the connection line between the pressure sensor of the intake pipe and the computer is broken or short circuit, the vacuum hose between the sensor and the intake pipe is blocked or leaked, and the vacuum hole of the intake pipe is blocked, etc., which will also make the output signal of the sensor abnormal.