Hyundai Tucson: Engine Control System / Manifold Absolute Pressure Sensor (MAPS) Description and Operation

Hyundai Tucson (LM) 2010-2015 Service Manual / Engine Control / Fuel System / Engine Control System / Manifold Absolute Pressure Sensor (MAPS) Description and Operation

Description

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.

ETC (Electronic Throttle Control) System Repair procedures

Inspection Throttle Position Sensor (TPS) 1. Connect the GDS on the Data Link Connector (DLC). 2. Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T. Specific ...

Manifold Absolute Pressure Sensor (MAPS) Specifications

Specification Pressure[kPa (kgf/cmx, psi)]Output Voltage (V)20.0 (0.20, 2.9)0.7946.7 (0.47, 6.77)1.84101.3 (1.03, 14.7)4.0 ...

Other information:

Hyundai Tucson (LM) 2010-2015 Service Manual: Schematic Diagrams
Schematic Diagram Canister The Canister is filled with charcoal and absorbs evaporated fuel vapor from the fuel tank. The gathered fuel vapor in canister is drawn into the intake manifold by the ECM/PCM when appropriate conditions are set. Purge Control Solenoid Valve (PCSV) The Purge ...

Hyundai Tucson (LM) 2010-2015 Owners Manual: Checking the engine coolant level
WARNING Never remove the radiator cap or the drain plug while the engine and radiator are hot. Hot coolant and steam may blow out under pressure, causing serious injury. Turn the engine off and wait until the engine cools down. Use extreme care when removing the radiator cap. Wrap a thick ...