vickiw106 1 Posted October 20, 2008 I have recently brought a shift light for my rally car I am struggling to work out which wire to use on the coil pack side Please find the wiring diagram below The suspect wiring is circled with arrow Thanks Share this post Link to post Share on other sites
jackherer 543 Posted October 20, 2008 Which engine/car is it? If its a 205 GTI with the original coil the bit you circled doesn't apply, just connect it to the coil. If its a newer setup with coilpacks it needs to be connected to the tachometer output from the ECU. Share this post Link to post Share on other sites
vickiw106 1 Posted October 20, 2008 Which engine/car is it? If its a 205 GTI with the original coil the bit you circled doesn't apply, just connect it to the coil. If its a newer setup with coilpacks it needs to be connected to the tachometer output from the ECU. sorry its a 205 gti 1.6 but i am running carbs therefore i am not running an ecu i have the wiring to the amplifier and to the coil pack this is why i am confused, origionally i thought the coil pack wouldnt work without the ecu, but it does any help would be good thank ian Share this post Link to post Share on other sites
jackherer 543 Posted October 20, 2008 Just connect the shift light to the negative (-) pin on your coil, ignore the dashed line on that diagram, that is for much newer cars with coilpacks not coils, it means they have more than one coil basically. If your 205 is post 1990 or thereabouts it might not have a cylindrical coil like the one in the diagram, it might be a squarer unit that would have been mounted on the inlet manifold if you didn't have carbs, if so its still wired the same, you will see a - by the correct pin. Share this post Link to post Share on other sites
vickiw106 1 Posted October 20, 2008 Just connect the shift light to the negative (-) pin on your coil, ignore the dashed line on that diagram, that is for much newer cars with coilpacks not coils, it means they have more than one coil basically. If your 205 is post 1990 or thereabouts it might not have a cylindrical coil like the one in the diagram, it might be a squarer unit that would have been mounted on the inlet manifold if you didn't have carbs, if so its still wired the same, you will see a - by the correct pin. thanks for you help i will give it a try Share this post Link to post Share on other sites
