It's a massive amount of time since I've posted on the forum.
Just got my ST185 (wide-body) back from a complete engine loom rewire and microtech LT10C install.
Problem is that the Water temp sender gauge now only reads low (0) when the single wire temp sender is disconnected and High (low resistance) when the sender is connected.
The Temp sender resistance is correct 226ish ohms at 50degC and about 140 ohms at 85 - 90 deg C. (I'm not going to let it get to 115deg C to check the 26ohms.
I haven't pulled apart the dash yet to check the resistance of the gauge.
However, has anyone had experience with what could be causing the IGN ON = HIGH reading on the gauge?
I am wondering if there is something simple like "an earth wire not connected to point "A or B or C" (as I assume the gauge is just a variable resistor type reference gauge).
Thanks all for your help.
There should be more photos on my build thread in the next few weeks.
Edited by Tinman, 15 February 2017 - 10:23 AM.