0
The Manifold Pressure Sensor (also known as the Manifold Absolute Pressure Sensor or the Manifold Differential Sensor) is a device that is used to calibrate the fuel delivery on most modern ECU Controlled (computerized) engines.
Used predominantly after the institution of the OBD-II (On-Board Diagnostics), it is used to calculate the difference between manifold pressure (measured in inches of Mercury) and ambient or atmospheric pressure. The computer uses this sensor to determine, based on the differential between the two, the conditions present requiring the fuel delivery to be adjusted.
At higher altitudes, the ambient pressure is lower, reducing the value when comparing the two readings. At lower altitudes, the atmospheric pressure is higher, generating a larger number. The larger the number, the less fuel is delivered, as decreased atmospheric pressure indicates (under normal conditions) a decrease in the density of the air and thereby a decrease in available oxygen, the second component required for efficient combustion.
Additionally, when the throttle plate is opened, the value generated by the Manifold Pressure Sensor (usually called the MAP) is reduced as the pressures equalize. This tells the computer that the operator is attempting to accelerate, adjusting timing, injector pulse width and other sub-systems to assure proper and efficient response.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Where is the Manifold differential pressure sensor 2001 Mitsubishi montero?
manifold differential pressure sensor montero sport 3.0
What does the differential pressure sensor do?
It's the MAP sensor...Manifold Absolute Pressure.
Where is the Manifold differential pressure sensor 2001 Mitsubishi Montero Sport?
manifold differential pressure sensor montero sport 3.0
2004 5.7 dodge ram uses instead of a maf?
It uses a manifold absolute pressure sensor.It uses a manifold absolute pressure sensor.
What is a map sensor on a tracer?
a map sensor is a manifold absolute pressure sensor.
Where is the Manifold differential pressure sensor 1997 Mitsubishi galant?
The manifold differential pressure sensor is on the top of the intake manifold. http://www.dsmtuners.com/forums/newbie-forum/102193-i-need-help-mdp-sensor-install.html
Intake manifold torque setting for intake manifold?
diferential pressure sensor intake manifold plausibility
Can you drive your car if there is a problem with the manifold pressure sensor?
no
What is the Map sensor 1986 2.9 liter?
Manifold Absolute Pressure Sensor ( MAP )
Where is the barometric pressure sensor on a 92 eclipse?
The MAP sensor is located on intake manifold.
What is a map sensor for?
Manifold Absolute pressure measures the change in manifold pressures. It is an input or data gathering sensor that the computer uses for management.
Where is the MAF sensor on a 1998 Jeep Cherokee?
A 1998 Jeep Cherokee does not have a mass airflow sensor. It uses a manifold pressure sensor, MAP, which is on the rear of the intake manifold.
