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Message: <blockquote data-quote="PEVO" data-source="post: 113338" data-attributes="member: 17894"><p>Ive got a 743 with a upgraded v2203 (51hp) from a salvaged OTR reefer unit. I had to rework the wiring too. Some wires had over heated and melted. Basically the previous owner shit canned everything and ran a 10 ga. wire from the bat. to the ign switch..back to the starter solenoid and glow solenoid mounted under the air filter. Simple but worked...NOTHING else thou worked...gages lts etc. Mine also has a pull cable for engine kill. You may have a shutoff solenoid on the injector pump. You can temp do the same to get it running and this will give you a starting point to trace the wiring. Everything starts at the switched bat. hot on the ign switch then goes to the fuses then to everything else back and forth from the dash to the engine. Main thing is the essential circuit to work the glow plugs, starter solenoid and or fuel cut off solenoid. You can trace back and expand from there. the wiring diagram was only about 70% accurate to my exact model but it gave me enuff info to muddle my way thru things. good luck.</p></blockquote><p></p>