Page 271 - 2006 HARLEY FLSTCI SERVICE MANUAL

NO High pressure. Inspect check valve fitting assembly and fuel tank. If OK, replace faulty fuel pressure regulator.

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NO Replace filter or clean pump inlet screen. Retest.

Install fuel pressure gauge. See TESTING under 5.15 FUEL PRESSURE TEST. Start and idle engine. Open and close throttle to change engine speed. Does fuel pressure remain steady at 55-62 PSI (380-425 kPa)? NO Low pressure. Check for restricted fuel filter or pump inlet screen. Are filter and screen OK?

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YES Check for restricted pressure line or flex hose between tank and test gauge. If lines are OK, check for: Faulty fuel pump. Restricted check valve fitting assembly. Leak inside tank caused by faulty coupling hose or connection, such as hose at filter or pump. Faulty fuel pressure regulator. 2006 Softail: Engine Management (EFI)

FUEL PRESSURE TEST YES Steady pressure. No trouble found. Review symptoms. 3 1

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