proud2bawesome 10 Report post Posted February 28, 2012 Hey guys, So I've been working on this coupe I got a few weeks ago and my latest job has to get the dash gauges and lights to work. Today I installed a new IVR. No dice. Then I take a closer look at the plug that goes into the circuit board and see that wire #11, aka the IVR wire, is just hanging out of the end of the plug. My problem is that I'm trying to figure out where I can find the other end of this wire so I can reconnect it- is it straight back? bundled on the left? And where does it connect to? My manuals aren't too helpful on this sort of thing. Picture: http://i.imgur.com/sFwNl.jpg Quote Share this post Link to post Share on other sites
LoneWolf2U 136 Report post Posted February 28, 2012 Look for the other end for the wire to plug into from the ign switch, IIRC on the 69's. Quote Share this post Link to post Share on other sites
cst 13 Report post Posted March 2, 2012 I have a 70 mach 1 and that black wire if I remember correctly shares the pin with a purple wire. It goes to nothing!(listed in the wiring diagram as a blind circuit for testing purposes during production) I looks like the previous owner cut a ground wire. I initially grounded mine and my fuel gauge didn't work. I checked all my gauges with a drill battery before i tried to install to make sure they were working. Also I found info in another thread that you must also ground the entire cluster which is done through the mounting screws or the gauges won't work. Hopefully this will save you a lot hrs. of headaches. Let us know how you make out Quote Share this post Link to post Share on other sites
danno 128 Report post Posted March 2, 2012 I think you have a different problem than this wire. If I understand that a IVR is the instrument voltage regulator, it has nothing to do with the dash lights. You also mentioned problems with them. Try connecting a seperate ground wire to the metal on the instru panel. I will bet this is the problem. It is the only thing in common between the IVR and dash lights. Quote Share this post Link to post Share on other sites
proud2bawesome 10 Report post Posted March 4, 2012 Well I did some tinkering around and my problem was in fact the grounding, in conjunction with the fact that my oil and fuel sending units were bad. Thank you guys for the advice! Quote Share this post Link to post Share on other sites
