Assuming you are asking if a vehicle can be driven with a faulty MAP sensor, the answer is yes; however, it will run less efficiently. A MAP sensor measures the pressure inside the intake manifold and sends this information to the engine control unit (ECU). The ECU then uses this information, along with other data, to regulate fuel injection and ignition timing. Without accurate data from the MAP sensor, the ECU cannot make proper adjustments, which will result in decreased performance.