One more question before I purchase a pressure sensor. My speedo has two three wire plugs one is connected to the network the other three wire end has no plug. Its just open. Definitely not left this way by the factory. Some older network protocols require a terminator at the end of line. Is a...
I disconnected the pressure sensor on the engine port side and blew compressed air from the engine side and had a helper watch for water and air discharging from the outdrive. No air leaking was detected in other places.
My Speedo has not worked since I purchased the boat six months ago. All other gauges work, the Pitot tube is clear as I have blown compressed air through it. Electrical connections are tight.
How do I determine if it is the gauge or the transducer that is bad?