Hyundai Santa Fe: Engine Control System / Manifold Absolute Pressure Sensor (MAPS). Description and operation

Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor and is installed on the surge tank. It senses absolute pressure of the surge tank and transfers the analog signal proportional to the pressure to the ECM. By using this signal, the ECM calculates the intake air quantity and engine speed.

The MAPS consists of a piezo-electric element and a hybrid IC amplifying the element output signal. The element is silicon diaphragm type and adapts pressure sensitive variable resistor effect of semi-conductor. Because 100% vacuum and the manifold pressure apply to both sides of the sensor respectively, this sensor can output analog signal by using the silicon variation proportional to pressure change.

Repair procedures

Inspection Throttle Position Sensor (TPS) 1. Connect the diagnostic tool on the Data Link Connector (DLC). 2...

Manifold Absolute Pressure Sensor (MAPS). Specifications

Specification Pressure (kPa) Output Voltage (V) 20.0 0.79 46.7 1...

Other information:

Hyundai Santa Fe (TM) 2019-2024 Service Manual: Heater & A/C Control Unit (DATC). Repair procedures

Self Diagnosis 1. Self-diagnosis process.    • When operating the self-diagnostics, the below fault(self-diagnostics code) will blink at 0...

Hyundai Santa Fe (TM) 2019-2024 Service Manual: Repair procedures

Service Adjustment Procedure Steering Wheel Play Inspection 1. Turn the steering wheel so that the front wheels can face straight ahead. 2. Mark the center of the steering wheel...