PlayDate
Well-Known Member
Okay......I'm missing something. You basically established the following:
The failure is like turning the key on-off really fast and because strb runs SmartCraft and gauges it make all helm readouts on-off crazy. The on-off also creates the RPM surge -/+400 RPM.
Why not run a fused 12 volt jumper and a ground wire directly to the SmartCraft display and take the engine harness out of the equation? It isn't a long term solution but if it really is power related...that should work and you can enjoy your boat.
The problem in tracing an engine harness is that it can be anything from a broken wire to a loose connector. The problem appears to be getting worse which means that it should stop working altogether at some point which in my opinion is easier to figure out. That said spiking power repeatedly to the SmartCraft display will cause it to fail.
I have chased this type of problem before.....and trying to find an intermittent power connection is a major time suck no one wants to pay for. The challenge with tracing is that the connections like this fail only when they have a load on them....so if your are just testing the wires with a DVM.....they look okay.....but they aren't.
The last one I worked on required hooking up a five amp light to the end of the circuit and then chasing it all the way back to the starter. In the end, it was a broken purple wire that had been improperly crimped but it took 3 days to find because the wires tested on a DVM fine.
The failure is like turning the key on-off really fast and because strb runs SmartCraft and gauges it make all helm readouts on-off crazy. The on-off also creates the RPM surge -/+400 RPM.
Why not run a fused 12 volt jumper and a ground wire directly to the SmartCraft display and take the engine harness out of the equation? It isn't a long term solution but if it really is power related...that should work and you can enjoy your boat.
The problem in tracing an engine harness is that it can be anything from a broken wire to a loose connector. The problem appears to be getting worse which means that it should stop working altogether at some point which in my opinion is easier to figure out. That said spiking power repeatedly to the SmartCraft display will cause it to fail.
I have chased this type of problem before.....and trying to find an intermittent power connection is a major time suck no one wants to pay for. The challenge with tracing is that the connections like this fail only when they have a load on them....so if your are just testing the wires with a DVM.....they look okay.....but they aren't.
The last one I worked on required hooking up a five amp light to the end of the circuit and then chasing it all the way back to the starter. In the end, it was a broken purple wire that had been improperly crimped but it took 3 days to find because the wires tested on a DVM fine.