1999 "EE" 90, 115 FFI, 150, 175 V4, V6 FFI Outboards Service Manual, P/N 787024, Page 133Get this manual
Crankshaft Position Sensor Resistance Test _
Measure resistance of sensor
Sensor Resistance
Throttle Position Sensor Resistance Test
Contact meter leads to red and black wire sensor pinsMeter should read greater than 3000 nMove one meter lead to green wire pin and move sensor arm smoothlymeter reading should change evenly with arm movementRetain meter lead on green wire pin and alternate the other lead to the other sensor pinRepeat procedureany erratic meter reading change indicates sensor problem