used manual to access codes on 99 90hp ficht that will not run. I have good spark, good compression, and fuel pressure. Codes said low voltage and crank sensor problem. Both of these problems checked out to be okay with only an air gap adjustment needed to crank sensor. I can't get codes to clear however. According to manual I have, throttle switch lever is moved and held for several seconds for several times with a light on guage staying lit. But mine won't clear is there another way? Voltage checks out fine.