Problem is digital guage indicates (according to service manual) there is a problem with the trim sensor or oil level in main tank. Drained oil from main tank and it refills in about 3 min and shuts off. Everything seems to work but the guage is giving a warning.<br /><br />Checked the sending unit in the main oil tank and it checks good according to the manual. The trim sensor has a reading of 0 to 224, manual says it should be 582 to 873 ohms between the black & pink. The manual says the trim sensor should have 4 wires, Black pink gray orange. The sensor and the new sensor from the dealer has 3 wires, black pink gray. Tried 3 different trim sensors from the dealer and they all read 0 to 224. Is manual wrong? Bringing the boat to a mechanic but was hoping for a possible solution. Thanks