hey guys,
so i stripped a bit of insulation off the ecu water temp wire just near the ECU, but did not cut the wire. now i wrapped a wire around it and sent it to the sensor terminal on the gauge, i wired up the gauge on the cigarette lighter at 12v's +/- and i even double checked it with the wrong terminal connected so i could make sure they were working on the right ones.
now the gauge works and reads the water temp, but when i leave it for a few hours i get a sort of temp reading draw/change to the ecu which in turn means that i cant start my car unless i disconnect the gauge sensor wire from the ecu water temp wire.
help would be great, not sure how i would take it to the auto elec when i have to leave it there for a few hours just for the problem to start.
much appreciated
EDIT: for a rb20det