coco69 Posted October 5, 2003 Share Posted October 5, 2003 hey all, just got my hands on a shift light, was wondering about install coz it doesn't seem to work yet. its got 3 wires, black, red and green. black is hooked to negative / grounded. red is hooked to ignition 12v. and green is meant to connect to the tachometer signal pin on the ecu. on an r32, i got that leeched off wire 7. which according to http://www.rb20det.com/ecupinout.html is tachometer speed signal. so it should all be working yeh? well i set it to light up on 3000rpm, and when driving, it doesn't light up! anyone installed a similar unit on an r32? my guess is that i've got the green wire hooked up wrong. let me know. Link to comment https://www.sau.com.au/forums/topic/26282-shift-light-install/ Share on other sites More sharing options...
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