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Home >> Honda >> 1993 >> Prelude VTEC >> Repair and Diagnosis >> External Pages >> Different car >> Section 5 (Engine Controls - Basic Testing) >> Fuel System >> Fuel Pressure >> Basic Diagnosis
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Basic Diagnosis

WARNING: This page is about a different car, the 1994 Honda Prelude. However, it is still accessible from the selected car via links, so may be relevant.

Begin basic diagnosis of fuel system by determining fuel system pressure. If fuel pump fails to run, inspect power supply to main relay. If all power supplies are present (i.e., battery, ignition and starter switch during cranking), perform functional test of main relay. See WIRING DIAGRAMS and SYSTEM/COMPONENT TESTS articles in the ENGINE PERFORMANCE Section.