1998 Johnson Evinrude "EC" 150, 175 FFI Service Manual, P/N 520211, Page 69Get this manual
IEngine Starts and Dies SYSTEMCOMPONENT CAUSES
Broken, Restricted Lines, Fittings, Filters Poor Quality or Spoiled Fuel or Water in Fuel Vapor Separator Closed Fuel System Float Stuck
ACTIONS
Repair or replace as necessary
Substitute known good fuel
See Action StepsFuel System
Damaged or Inoperable Fuel Pumps(s)Low or No Pressure
Fuel pump should run for 10 seconds when Key Switch is turned ONPerform Fuel Pressure Test andor test pumps See Action StepsFuel System Verify using timing light while running or use OIIIIC Diagnostics Software to activate Injectors See Action StepsFuel System
Loss of ECU Signals to Injector(s)
Worn Spark Plugs Poor Ground Connections
A tight connection doesn't mean good connectioncheck using an ohmmeter or disassemble and inspect Monitor signal leads at Ignition Module See Action StepsIgnition System Multiple firing of cylinder can cause engine to die as it acceleratesverify using timing light Loss of output to coils See Action StepsIgnition System Use OIIIIC Diagnostic Software See Software Users Guide Intermittent switched B+Test Key Switch See 60 LV Service Manual Perform functional test See Action StepsIgnition System Perform Compression Test andor Visual Inspection See 60 LV Service Manual