I need a Tach signal
#1
I need a Tach signal
So to fill you guys in i followed Scots how to install Cop's and used some from a Millenia wich Patsmx5 provided. Got it all installed and fired it up. But since none of my coils have tach outputs like the toyota coils my in dash tach does not work for me. MS still works just fine though. So where can i splice into a tach signal for my dash? Plz I dont wanna have to have MS hooked up to read my rpms.
#2
You will have to build the tach output circuit for the MS and connect it to your dash tach to get it to work right. You can find it here.
http://www.msextra.com/manuals/MS_Ex...l.htm#tachoout
http://www.msextra.com/manuals/MS_Ex...l.htm#tachoout
#4
sorry Scot i thought i made that clear in my messages, at least the second one. I gues i am getting rusty i havent been postwhoring at all for a month or more now.
Do you guys think that mayhaps i can piggy of my trigger signal or something similiar? Or maybe i can share the signal that my Ms uses for rpm it still reads fine?
Do you guys think that mayhaps i can piggy of my trigger signal or something similiar? Or maybe i can share the signal that my Ms uses for rpm it still reads fine?
#11
Uh guys what is a BD37? my MS1 was wired into the stock ecu board by Adbradley he didn't use a boomslang he modded and jumpered the baord internally. Pat if you can make it and explain how to implement it then i will use it and let you know if it works. There has to be a simpler way than all that **** to do this though geez. If it comes down to it i just wont run a dash tach this is getting rediculous all i wanted was more spark.
#12
Uh guys what is a BD37? my MS1 was wired into the stock ecu board by Adbradley he didn't use a boomslang he modded and jumpered the baord internally. Pat if you can make it and explain how to implement it then i will use it and let you know if it works. There has to be a simpler way than all that **** to do this though geez. If it comes down to it i just wont run a dash tach this is getting rediculous all i wanted was more spark.
#18
Cool, glad it's working for you. I'll probably be doing the same thing for COPs soon. Well, everybody it's official, Millenia COPs and that circuit I posted above works. The COPs came off a SC'd millenia that ran 14 PSI stock, so they should be pretty hot coils. All year supercharged millenia coils will work (95-02). Note the 2.3 millenia was the SC'd version with COPs. The 2.5 NA motor does not have these COPs, it has a distributor.
Also, the 95 coils had 4 wires, not 3. From a millenia forum:
The extra 4th pin on the older coil was not used in 96 and later. Is called an ignition confirmation signal in the service highlights but no other description as to purpose.
For Reference, you'll need:
4 Millenia COPs with connectors: http://i231.photobucket.com/albums/e...ys/barrys1.jpg
The tach output circuit: http://i231.photobucket.com/albums/e...ichardspic.jpg
Here's the pin out of the coils: http://i231.photobucket.com/albums/e...ram2-17-08.jpg
That should do it. Just follow Braineack's writeup on how to wire everything and use the pin out for the coils above and add the tach circuit.
Last edited by patsmx5; 04-30-2008 at 05:49 PM.