Sportage 2WD L4-2.0L DOHC (1996)
Fuel Return Line: Description and Operation
FUEL PIPES AND HOSES
Fuel feed and return pipes (lines) and hoses carry fuel from the fuel tank to the throttle body and back to the fuel tank. These pipes and hoses are
attached to the underbody of the vehicle and must be inspected for kinks or dents which may restrict fuel flow.
Fuel vapor pipes and hoses carry fuel vapors from the fuel tank to the evaporative emissions canister located in the engine compartment. The fuel
vapors are stored in the canister when the engine is not running. When the engine is running at normal operating temperature, and the accelerator
pedal is depressed, the engine control module (ECM) will command the evaporative emission solenoid purge valve to open and allow the stored
fuel vapors to be purged into the intake manifold and be absorbed into the combustion process.