tucka786 Posted December 19, 2010 Share Posted December 19, 2010 Hello, I need some advice on the wiring of a coil on a EA81 engine which I am currently bench testing so it is out of the car. I know I have to have a live feed directly from the battery onto the postive side of the coil. I have the following wires from the distributor which I am not sure of Yellow Black and white Does the yellow place on the minus side of the coil and the black and white to the postive side of the coil ? Is there any other wires that need to be on the coil from either the distrubutor or engine ? Thanks in advance Tucker Quote Link to comment Share on other sites More sharing options...
T'subaru Posted December 19, 2010 Share Posted December 19, 2010 heres a link to a partial ea81 fsm with wiring diagrams http://www.ch601.org/engines.htm Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted December 20, 2010 Share Posted December 20, 2010 You need a battery positive to the + side of the coil. The black/white is + The Yellow is - In a typical installation you will have two black/white wires to the +: Distributor and ignition switched battery supply. The negative will have the yellow wire from the distributor and another yellow wire that is the tach signal wire going to the tach/FPCU/ECU etc. Important to note that the distributor body is grounded to the engine block so is battery negative for a bench test.... GD Quote Link to comment Share on other sites More sharing options...
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