Hyundai Ioniq (AE): Evaporative Emission Control System / Canister. Repair procedures

Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Engine Electrical System / Evaporative Emission Control System / Canister. Repair procedures

Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the fuel tank.
(Refer to Engine Control/Fuel System - "Fuel Tank")
3.
Disconnect the vapor tube quick-connector (A).

4.
Remove the canister (A) from the fuel tank after loosening the bolts (B).

5.
Disconnect the vapor hose (A).

6.
Remove the canister protectors (A).

Inspection
1.
Check for the following items visually.
–
Cracks or leakage of the canister
–
Loose connection, distortion, or damage of the vapor hose/tube

A : Canister ↔ Atmosphere
B : Canister ↔ Intake Manifold
C : Canister ↔ Fuel Tank
Installation
1.
Install in the reverse order of removal.

    Schematic DiagramCanisterCanister is filled with charcoal and absorbs evaporated vapor in fuel tank. The gathered fuel vapor in canister is drawn into the intake manifold by the ECM/PCM when appropriate conditions are set.

    Replacement1.Turn ignition switch OFF and disconnect the negative (-) battery cable.2.Remove the filler-neck assembly(Refer to Engine Control/Fuel System - "Filler-Neck Assembly")3.

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    Inspection1.Disconnect the negative (-) battery terminal.2.Remove the crash pad lower panel.(Refer to Body - "Crash Pad Lower Panel")3.Remove the lower crash pad switch assembly (A) after disengaging the mounting clip.4.Remove the rheostat switch connector (A).

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