2008 Evinrude E-TEC 55MFE Technical Manual, Page 103Get this manual

2008 Evinrude E-TEC 55MFE Technical Manual, Page 103

SYSTEM ANALYSIS FUEL DELIVERY TESTS
FUEL DELIVERY TESTS
WARNING
Protect against hazardous fuel sprayBefore starting any fuel system service, carefully relieve fuel system pressureRefer to Relieving Fuel System Pressure on p150Use the Evinrude Diagnostics software Stored Faults screen to check for current service codes before troubleshootingCorrect any problems and clear the codes FIRSTInspect all fuel hoses, filters, and connectionsCheck quality of fuel supply
The EMM controls the fuel pump ground (brown
wire)Use an ohmmeter to check continuity between pin of fuel pump connector and groundUse the fuel pump static test to activate the control function of the EMMResistance should drop as EMM connects the control circuit to ground Refer to Circulation Pump Resistance Test on p147If the pump runs:

Refer to Fuel System Pressure Test on p145 Refer to Running Fuel System Tests on
Fuel Injector Static Test
Use the Fuel Injector Static Test of the diagnostics software to activate each fuel injectorListen for an audible "click" from each injector when it is actuatedIf the injector activates, the EMM and injector circuits are not at fault