Hyundai Tucson: 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.
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 ...
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
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Other information:
Hyundai Tucson (LM) 2010-2015 Owners Manual: All wheel drive (AWD)
The All Wheel Drive (AWD) System delivers engine power to all front and rear
wheels for maximum traction.
AWD is useful when extra traction is required on roads such slippery, muddy,
wet, or snow-covered roads.
Occasional off-road use such as established unpaved roads and trails are OK.
It i ...
Hyundai Tucson (LM) 2010-2015 Owners Manual: Rocking the vehicle
If it is necessary to rock the vehicle to free it from snow, sand, or mud, first
turn the steering wheel right and left to clear the area around your front wheels.
Then, shift back and forth between R (Reverse) and a forward gear. Try to avoid
spinning the wheels, and do not race the engine.
...