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Home >> Kia >> 2003 >> Optima SE, 2.7 8 >> Repair and Diagnosis >> Quick Lookups >> Common Specs & Procedures >> Fuel System >> Fuel Pressure Specifications >> Specifications
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Fuel Pressure Specifications: Specifications

FUEL PRESSURE SPECIFICATIONS

Application psi (kPa)
Fuel Line Pressure (1)(2)
Regulator Vacuum Connected 37 (255)
Regulator Vacuum Disconnected 46-49 (320-340)
(1) With pressure gauge connected to main fuel line with adapter.
(2) Engine at idle.
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