Basically, . . . you sucked! I can't post a response to another post because it won't make any sense without an attached electrical schematic. But when I try to attach a photo of only 572 kilobytes, I get a message that says the file is too large. There's to problem with copyrights or anything like that, because I drew the diagram myself.And when I do a search to try to find out what the normal oil pressure range is and enter +engine+oil+pressure+YM200-hydraulic, I still get results containing "hydraulic".