Accord L4-2156cc 2.2L SOHC (1991)
Manifold Pressure/Vacuum Sensor: Description and Operation
MAP Sensor Cutaway/Voltage Output Characteristics
The Manifold Absolute Pressure Sensor, mounted inside of the control box, is a silicon diaphragm strain gauge type of sensor. It converts a pressure
differential to a voltage signal which is then sent to the ECU as an input. At idle with a manifold pressure of 500 mmHg (20 in.Hg) the sensor output is
approx. 1.0-1.25 volts, at wide open throttle manifold pressure of 0 mmHg (0 in.Hg) the output is approx. 2.75-3.0 volts.