1999 "EE" 90, 115 FFI, 150, 175 V4, V6 FFI Outboards Service Manual, P/N 787024, Page 77Get this manual
IEngine Cranks But Won't Start SYSTEMCOMPONENT
Water in fuel Restricted or leaking fuel delivery system Oldstale fuel Blown circulation pump fuseposition 4
ACTIONS
Check fuel filter for waterCode 37 Check for damaged primer bulb, antisiphon valve or poor connections that leak air Substitute known good fuel Fuel pump should run for 10 seconds when key switch is turned ONReplace fuse and retry See Action StepsFuel System"Check Circulation Pump" See Action StepsFuel System"Check Circulation Pump" Monitor injector wires while cranking or use FFI Diagnostic Software to activate injectors See Action StepsFuel SystemSee Action StepsIgnition System to test stop circuit
Fuel System
Failed pump relay
Failed circulation pump
ECUNo signal to injectors
Emergency stop circuitno switched B+ to ECU Crank position sensorno output
FFI Diagnostics Software should indicate at least 200 RPM while crankingAdjust or test componentUse PRV to measure voltage at coils180V minimum i.eECU thinks it is starting cold engine when it is actually warm Replace and retryrepeated failures may indicate failed ECU See Action StepsFuel System"Check Circulation Pump" See Action StepsIgnition System to test stop circuit See Action StepsIgnition System See Action StepsIgnition System Check key switchinstrument harness or diode in engine harness Low or inadequate battery, loose connection, etcSee Section for test procedures