Hyundai Tucson: Evaporative Emission Control System
The Evaporative Emission Control System prevents fuel vapor stored in fuel
tank from vaporizing into
the atmosphere. When the fuel evaporates in the fuel tank, the vapor passes
through vent hoses or
tubes to a canister filled with
Be careful not to damage the parts located under the vehicle (floor
under cover, canister, fuel tank)
when raising the vehicle using the lift.
(Refer to General Information - "Lift and Support Points")
Install in the reverse order of removal.
Check for the following items visually.
Cracks or leakage of the canister
Loose connection, distortion, or damage of the vapor hose/tube
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 u
Installed on the delivery pipe, the Rail Pressure Sensor (RPS) measures the
instantaneous fuel pressure
in the delivery pipe. The sensing element (Semiconductor element) built in the
sensor converts the
pressure to voltage signal.