1999 "EE" 90, 115 FFI, 150, 175 V4, V6 FFI Outboards Service Manual, P/N 787024, Page 86Get this manual
Regularsteady light on all injectors and voltages are steadyOKGo to Conclusion Irregular or no firing on some injectorssuspect fuses in Positions 2, 3, and 6; crank position sensor adjustment 0.045-0.055 in (1,1-1,4 mm)low voltagedamaged injector; open circuit; or damaged ECU Go to Step No injectors firesuspect crankshaft position sensor, 26-volt charging system (also affects ignition)' main power relay, or ECU Go to Step 7Step 7: Voltage Supply TestsBattery must be of adequate capacity, fully charged with clean, tight connections ElGG
ACheck condition of fuses at Positions 2, 3, 6, and 7
BInstall emergency stop clip CVerify switched B+ at purplewhite wire, terminal "J", of Power Distribution Panel 14-pin connectorThere should be more than 9.5 volts while crankingor more than 13 volts while running OKverify 26-volt system Go to Step No voltagetest stop circuitSee Step of Action StepsIgnition System in this section Low voltage:Verify battery capacity, condition, and connections- Test current draw of starter motorSee Section 7[] DVerify 26-volt system by checking voltage at fuses in Positions 2, 3, and 6Check for any of he following: Key ON engine not runningabout volt less than battery voltage Crankingmore than key ON voltage Engine runningmore than 25 volts and steadyResults: As specifiedcheck supply voltage at injectorGo to Step Any less than specifiedtest charging system See Section 7