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Showing results for tags 'temp guage'.
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Hey there guys. Mike W here. Damn, I haven't been on USMB in a loooong time! So I recently brought the red Hatchback outa storage. I'm working out a few bugs and thinking I might finally sell this beastie if I get everything proper. But this minor electrical voodoo issue is having is driving me nuts and have the feeling I'm missing something very obvious! I sure hate to post on here but I'm a bit frustrated and could use help! '88 Hatchback (EA81) All the dash gauges used to work. But recently the Oil Pressure, Batt Voltage, and Temp gauges...all quit working. But not all at once! First the oil pressure quit working, then a few days later the temp guage quit, then the volt gauge just quit. WTF?!! The fuel gauge and the rest of the dash works just fine. I can't find any blown fuses. I've checked (and sprayed) all connections in the engine bay. All seem fine. I checked and sprayed connections behind the dash , they seem fine too. Is there some secret fuse I don't know about? Bad ground??? Where to look? Failing voltage regulator? Headlights etc brighten and dim a bit with RPMs and I'm seeing some voltage spikes in the 14.7 range. What am I missing here??? Any help would be appreciated!
My Dash Thermostat is reporting as high as the needle can possibly go, it gets there before the computer reads running temp (190-200). My ODBII is reporting running temp after a proper warm up time. The sensor is a 3 wire, combined sensor/switch. Why would one read impossibly high, and the other work in parameter. I've replaced the sender. All this is after a rebuild so ground? or other ideas please....