1994 Isuzu Rodeo LS V6 w/ 136k miles. No combustion while driving all of a sudden. Had battery and cranking power but no ignition. #8 Back engine L 10 amp fuse blew and kept blowing. Went through wiring schematic and ended up being the tranny “up shift sensor indicator switch”.Unplugged and truck started right up. Not sure why it went bad or why it kept blowing the fuse but who care’s? it’s fixed and I’m “on the road again”. Thank GOD for repair manuals. Diagnostic time was a leasurely 2.5 hours. Almost a pleasant weekend repair job. “It’s Alive”!!!