DuoWing Posted July 30, 2008 Share Posted July 30, 2008 Alright I want to see if you guys can provide any insight on this. I've hooked up everything as it's supposed to be. MSD Tach converter to original Coil + and - wires, then hooked into the corresponding red/white wires on the mallory. Orange and black to + and - coils, red and black battery to + and - battery terminals. If I have the MSD Tach converter wired in, with the ignition on I can ground the white wire and get spark. Same situation but Tach converter disconnected no spark if I ground the white wire. I left the coil wire grounded while cranking to see if I was getting spark. Nothing. I'm using an MSD Blaster II coil. If I plug the stock ignition back in the way it's supposed to be, then no problem car fires right up. I can't figure out what's wrong. I have the blue wire that comes from the ignition module and also connects into the main harness spliced into the red wire from the mallory, I also have my pin 34 wire from my Z31 ecu spliced into this. Now I have the black with white stripe wire as well as my pin 3 wire from my Z31 ecu going into the white wire. Is there something wrong with this setup? I wonder if trying to ground the white wire while cranking would provide any results. I haven't tried this yet. Another thing I noticed wit ignition on and checking all my wires and connections, I noticed the black wire that goes directly to the negative terminal has no voltage on it, I know it's a ground, but shouldn't it have voltage on it? Or would that be only when cranking? The red wire coming from the battery has voltage on it as it should. Any suggestions on this? As far as I can I must have something not connected right as the Tach converter must be switching something and providing a full 12v or something to spark? Quote Link to comment Share on other sites More sharing options...
DuoWing Posted July 30, 2008 Author Share Posted July 30, 2008 Ok, I've been searching and searching via google and HybridZ. So far the one thing I've come across is that I was hooking this up wrong? What I'm getting is that the black/white wire that goes to the ignition is the 12v source, but for some reason the black/white wire goes to the negative terminal on the coil? I'm not the best with wiring and still learning, but I guess the problem is I don't get it? Maybe it's because the the Mallory instructions specifically have you using the wires that went to the - and + coil terminals? Quote Link to comment Share on other sites More sharing options...
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