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Discussion Starter · #1 ·
i recently transferred my 525i e34 engine into a 520i body,together with the engine harness and its computer box, but somehow the temperature gauge on the display does not move an inch even when the car has been idling for long, i checked the wire that connects the temp switch that sits just under the inlet manifold, i connected the two pins with a wire and there was a signal on the display,the needle moved right to the end,which tells my unknowlegeable head that the connection from there to the dashboard display is fine,then i changed the switch,but still no action,thats the black switch i'm talking about,then there is the other blue one,can someone help me as to the switches functionalities. Could my problem be caused by the difference in the wiring betweeen a 525i and a 520i?
 
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