mobythevan Posted April 18, 2006 Share Posted April 18, 2006 check out this thread http://forums.hybridz.org/showthread.php?t=107106 and this schematic for wiring your coil on the v3 board http://megasquirt.sourceforge.net/extra/pix/vb921-driver-single.gif Notice that 12volts to the coil positive post comes from the fuel pump relay wire so that the coil is only power when the engine is spinning (as detected by the tach input from the CAS). Quote Link to comment Share on other sites More sharing options...
DAT240Z Posted April 20, 2006 Share Posted April 20, 2006 So Brian are you saying that I have to run two wires from the fuel pump relay (pin # 5 on the relay board), one for the fuel pump and the other two the coil? I'm a bit confused Quote Link to comment Share on other sites More sharing options...
mobythevan Posted April 20, 2006 Author Share Posted April 20, 2006 That is what it looks like, instead of connecting a wire from the ignition switched 12 volts to coil positive you would instead connect a wire from the fuel pump connection on the relay board, that way the coil is only powered when the fuel pump is powered, so two wires. Quote Link to comment Share on other sites More sharing options...
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