Just for info sharing.

MAF and MAP are 2 different types of sensors.

MAF measures volume of air entering the engine (usually located at the airbox before the throttle body). MAP measures the Manifold Pressure (usually located past the throttle body).

Either one of the above (with open loop feedback from the O2 sensor and TPS) is used for the ECU to calculate effective fuel delivery.


Most cars now have changed from MAF to MAP sensors since the late 90s.