hodge Posted July 30, 2009 Share Posted July 30, 2009 can someone tell me what the sensor is for in the bottom of the rad next to the drain plug as ive noticed some supras dont have them. Thanks John Quote Link to comment Share on other sites More sharing options...
pistonbroke Posted July 30, 2009 Share Posted July 30, 2009 Is it in the rad, or just out in the open? Quote Link to comment Share on other sites More sharing options...
hodge Posted July 30, 2009 Author Share Posted July 30, 2009 its screwed into the bottom of the rad. Anyone any ideas....... Quote Link to comment Share on other sites More sharing options...
Homer Posted July 30, 2009 Share Posted July 30, 2009 It's the rad temp sensor, I think it's only present on TT's. Can't recall exactly what it feeds back to though. Might just be a feedback for the ECU.. Quote Link to comment Share on other sites More sharing options...
hodge Posted July 31, 2009 Author Share Posted July 31, 2009 If this isn't present could it cause overheating problems. Quote Link to comment Share on other sites More sharing options...
jevansio Posted July 31, 2009 Share Posted July 31, 2009 The regulation of the coolant system temp is controlled totally mechanically by the thermostat, would ahve thought the ECU uses the coolant temp for stuff like fuel enrichment during cold starts etc, that's what the AEM does. Quote Link to comment Share on other sites More sharing options...
hodge Posted July 31, 2009 Author Share Posted July 31, 2009 so why doesnt an n/a have 1. Quote Link to comment Share on other sites More sharing options...
TrickTT Posted July 31, 2009 Share Posted July 31, 2009 It switches the 2 auxilliary electric fans via 2 relays under the n/s headlight. There is also another one in the aircon circuit that does the same. Quote Link to comment Share on other sites More sharing options...
hodge Posted July 31, 2009 Author Share Posted July 31, 2009 so its not really needed then. Quote Link to comment Share on other sites More sharing options...
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