MSD T-Map4 400KPA Ecoboost tMAP sensorMSD T Map4 Ford Ecoboost tMAP Sensor. This unit has been developed by ourselves to be a direct replacement for the 300KPA sensors fitted to the popular Ford Ecoboost 2. 3 litre* engines. These sensors will typically be required for calibrations running in excess of 290 KPA that require more sensor headroom. Sensor Specifications: Temperature range: 40 to 266 Degrees F Pressure Range: 20 to 400 KPA Your ECU Calibration MUST be adjusted to be able to