Here's some values to test the MAP sensor on the delphi units on the wires to the unit. A service manual with the wiring diagram will help to locate the proper wires on the sensor.
Sensor output voltage range is 0.5 to 4.5 volts. Output voltages between 0.5 and 1.5 volts indicate a high vacuum (low pressure) situation, such as idle or deceleration.
Output voltages between 1.5 and 3.0 volts indicate a medium level of vacuum (pressure) such as a cruise or slight acceleration condition.
Output voltages between 3.0 and 4.5 volts indicate a low vacuum (high pressure) situation such as hard acceleration or a mechanical failure.
Any reading of 0 volts or over 4.5 volts indicates a problem.
Sensor output voltage range is 0.5 to 4.5 volts. Output voltages between 0.5 and 1.5 volts indicate a high vacuum (low pressure) situation, such as idle or deceleration.
Output voltages between 1.5 and 3.0 volts indicate a medium level of vacuum (pressure) such as a cruise or slight acceleration condition.
Output voltages between 3.0 and 4.5 volts indicate a low vacuum (high pressure) situation such as hard acceleration or a mechanical failure.
Any reading of 0 volts or over 4.5 volts indicates a problem.