Hyundai Genesis: Engine Control System / Fuel Tank Pressure Sensor (FTPS) Description and Operation
Fuel Tank Pressure Sensor (FTPS) is a component of the
evaporative emission control system and is installed on the fuel tank,
the fuel pump, or the canister. It checks the purge control solenoid
valve operation and detects a leakage of the system.

Inspection
1.
Connect the GDS on the Data Link Connector (DLC).
2.
Turn the ignition switch ON.
3.
Measure the output voltage of the APS 1 and 2 at C.T and W.O.T.
Specification: Refer t ...
Specifications
Pressure [kPa (kgf/cm?, in H2O)Output Voltage (V)'-6.67 (-0.068, -26.8)0.502.5'+6.67 (0.068, 26.8)4.5
...
Other information:
Follow Normal Maintenance
Schedule if the vehicle is usually
operated where none of the following
conditions apply. If any of the following
conditions apply, you must follow
the Maintenance Under Severe
Usage Conditions.
Repeated short distance driving.
Driving in dusty conditions ...
An AWD vehicle must be tested on a
special four wheel chassis
dynamometer.
An AWD vehicle should not be tested
on a 2WD roll tester. If a 2WD roll
tester must be used, perform the following
procedure:
1.Check the tire pressures recommended
for your vehicle.
2.Place the rear wheels o ...