Optima V6-2.7L (2003)
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)