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Home >> Kia >> 2003 >> Optima L4-2.4L >> Repair and Diagnosis >> Powertrain Management >> Tune-up and Engine Performance Checks >> Fuel Pressure >> Specifications
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Fuel Pressure: Specifications

Fuel Pressure
Vacuum hose disconnection 330 - 350 kPa (47 - 50 psi) at Curb Idle
Vacuum hose connection 270 kPa (38 psi) at Curb Idle

Fuel Pressure Regulator
Injector opening Pressure 300 ± 1.5 kPa (3.35 ± 0.06 kg/sq.cm)