If the intake manifold pressure sensor is broken, the following phenomena occur.
1. After starting the engine, the instrument engine failure light is lit and will not be extinguished.
2, the car engine runs unstable or jitter, acceleration is weak. Some models don't even start or stall automatically.
Some models rely on pressure sensors instead of air flow meters, so if the pressure sensor is broken, the impact is relatively large.
Pressure sensor measurement, pressure sensor according to the line diagram, there is generally a power supply line, a wire, signal line. Measure the data and conductivity of the wiring harness to determine whether its line is faulty, if the line is not faulty, then the sensor itself is more likely to fail. Some models also have a line for intake air temperature.
Replace the pressure sensor.