ep91face Posted April 5, 2011 Share Posted April 5, 2011 hi,I recently bought a rev gauge of ebay Tachohaving read up on wiring one in this one seems to be short some wires, there is only a black,red and blue coming out of the gauge.how would i go about wiring this up, im dreading hearing that its missing a wire because it doesnt light up because its pretty impossible ot see other wise and I've already wrapped the pod in carbon fibre i really just want this to work as expected,cheers for any help i get guys im a complete novice to wiring anything! Quote Link to post Share on other sites
string Posted April 5, 2011 Share Posted April 5, 2011 i presume thta red is 12v live. black will be earth. blue will be rev signal. i used a spade connector into the ig+ on the diagnostic port for the blue wire. red of the stereo and black to a chassis bolt. Quote Link to post Share on other sites
redz11 Posted April 5, 2011 Share Posted April 5, 2011 Im sure the tacho wire in the n/a is a thickish brown/orangey colour wire? I cant quite remember.... but im guessing the red is a power wire and black is an earth?Sorry i cant help more bud, someone will build on my crappy opinion Quote Link to post Share on other sites
string Posted April 5, 2011 Share Posted April 5, 2011 yeh if your wiring it into ecu then its the thick orange as far as i know. Quote Link to post Share on other sites
ep91face Posted April 5, 2011 Author Share Posted April 5, 2011 i presume thta red is 12v live. black will be earth. blue will be rev signal. i used a spade connector into the ig+ on the diagnostic port for the blue wire. red of the stereo and black to a chassis bolt.did yours light up though string? as I've been looking at a few diagrams and explanations online and they all seem to have a seperate wire they say is for the gauge illumination.thanks for your helps so far lads Quote Link to post Share on other sites
jimbo-ep91 Posted April 5, 2011 Share Posted April 5, 2011 did yours light up though string? as I've been looking at a few diagrams and explanations online and they all seem to have a seperate wire they say is for the gauge illumination.thanks for your helps so far ladsHello mate, yea red 12v + blavk wilk be earth, blue one will be the rev pick up,, either behind the cluster or somewhere similar, and the 4th wire is normally a dimmer so when u turn the sidelights on it dims it down a bit so its not so bright, u just wont get that, but the 12v + will probs do your backlight Quote Link to post Share on other sites
Raz Posted April 5, 2011 Share Posted April 5, 2011 if there is a wire missing, you can take it apart and see where to connect + and - for illumination(if any) Quote Link to post Share on other sites
ep91face Posted April 5, 2011 Author Share Posted April 5, 2011 thanks a million jimbo hopefully thats the case and I've finally made sense of it all.cheers everyone! Quote Link to post Share on other sites
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