Hyundai Equus: Description and Operation
Second generation VI (2009–2026) / Hyundai Equus VI 2009-2026 Service Manual / Emission Control System / Evaporative Emission Control System / Description and Operation
Second generation VI (2009–2026) / Hyundai Equus VI 2009-2026 Service Manual / Emission Control System / Evaporative Emission Control System / Description and Operation
| Description |
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 canister filled with charcoal. The canister temporarily holds
the vapor in the charcoal. If ECM determines to draw the gathered vapor
into the combustion chambers during certain operating conditions, it
will vacuum into intake manifold.
Schematic Diagrams
Schematic Diagram
Canister
Canister 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 ...
See also:
General Information
General Troubleshooting Information
Before Troubleshooting
1.
Check applicable fuses in the appropriate fuse/relay box.
2.
Using the battery checker (MCR-570 KIT), check the battery for damag ...
Troubleshooting
Troubleshooting
SymptomSuspect areaRemedyEngine misfire with abnormal internal lower engine noises.Worn crankshaft bearings.Loose or damaged engine drive plate.Replace the crankshaft and bearings ...
Pre-safe seat belt (PSB) (if equipped)
The purpose of the pre-safe seat belt is to tighten the seat belt during emergency
braking, or when a loss of control is sensed.
CAUTION
The pre-safe seat belt activates only when the passenge ...
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