1998 Johnson Evinrude "EC" 150, 175 FFI Service Manual, P/N 520211, Page 82Get this manual
Regularsteady light on all injectors and voltages are steadyOKGo to Conclusion Irregular or no firing on some injectorssuspectfuses in Positions 2, 3, and 6; crank position sensor adjustment 0.045-0.055 in(1,1-1,4 mm); low voltage; damaged injector; open circuit; or damaged ECUGo to Step No injectors firesuspect crankshaft position sensor, 26-volt charging system (also affects ignition), main power relay, or ECUGo to Step 7Step 7: Voltage Supply TestsBattery must be fully charged with clean, tight connections ElG0
ACheck condition of fuses at Positions 2, 3, 6, and 7BInstall emergency stop clip
rn CPower Distribution B+ at purplewhite wire, There shouldVerify switched Panel 14-pin connectorterminal "J", of
be more than 9.5 volts while cranking, or more than 13 volts while running OKverify 26-volt systemGo to Step No voltagetest stop circuitSee Step of Action StepsIgnition System in this section Low voltage:Verify battery capacity, condition, and connectionsTest current draw of starter motorSee 600 LV Service Manual