Hyundai Equus: Exhaust Emission Control System

Fuel Tank Air Filter Repair procedures

Replacement 1. Turn the ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the service cover (A). 3. Disconnect the canister close valve connector (A). 4. Di ...

Description and Operation

Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components. Modifications to the combustion chamber, int ...

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Mechanical Key
If the Smart Key does not operate normally, you can lock or unlock the door by using the mechanical key. Mechanical Key of Conventional Smart Key Depress and hold the release button (1) and re ...

Change to "winter weight" oil if necessary
In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See section 8 for recommendations. If you aren't sure what weight oil you s ...

Repair procedures
Fuel Pressure Test 1. Release the residual pressure in fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line")     When removing the fuel pump re ...