Where is the intake air pressure sensor?
Intake manifoldSpecific location features: a rubber tube or copper pipe, the other end is a lump of iron, there are two lines with.Brief introduction:Intake pressure sensor (ManifoldAbsolutePressureSensor), referred to as MAP. It takes the vacuum tube connected to the inlet manifold, with different engine speed and load, the change of the vacuum induction in the intake manifold, then from the internal resistance change sensor, converted to a voltage signal for ECM computer fixed fuel injection and ignition timing angle.Working principle：By sensing the intake pressure in the intake manifold (that is, the amount of air intake), control the amount of fuel injection. Thus, the mixture can maximize the ideal air-fuel ratio (14.7:1) and improve the utilization rate of fuel, such as gasoline.
The intake pressure sensors are all installed behind the throttle valve. They are usually installed on the intake port, and both the high-grade air flow meter and the intake pressure sensor are available!
To clear the problem, is the position of the sensor, the pressure sensor or the technical specifications, if you don't understand, you can search the Shanghai Zhaohui pressure instrument, they have the technology you can consult, hoping to help you
