85 svo wiring diagram, factory tach input?

[at8tc]

i was wondering if anyone had a photocopy of a wiring diagram for a 85 svo i could look at? im trying to find the wire that goes to the tach, so i can hook it up to my megasquirt. i dont have the factory engine harness anymore. any one got any ideas??

[NavySVO]

I have an EVTM at home. Let me see if I can help you out later today.

[NavySVO]

Here you be. HTH

[at8tc]

thanks man, i appreciate it! so i assume im looking for a dark green wire with yellow strip in one of the plugs that the engine harness plugged into?

[NavySVO]

I think it is part of the chassis harness, not the EEC harness

[at8tc]

yes but the tach signal has to originate from the engine harness as that is where the coil plugs into?? im trying to find where the tach signal from the engine harness ties into the chassis harness.

[NavySVO]

maybe more help?

[at8tc]

ok i think i found it, do you have one of the engine bay showing the numbers of the connectors? im looking for connecter 2010. im pretty sure its one of the plugs right behind the drivers strut tower?

[NavySVO]

2010 or C210?
If it's C210, it's located under the Instrument panel shake brace (interior). It is a gray 12 terminal plug.

[at8tc]

yes c210 2 of the plugs from the engine harness connected down in the drivers side kick panel is that it?

[at8tc]

mike, there are two plugs that i had to unplug when i pulled the engine harness! they are right by the master cylinder, one of them has a dark green wire with yellow dashes. is this the tach wire?? also any idea what type of circut i need to build for the ms to run it?? no more tfi/pip im running a vr sensor and ls2 coilpacks. do i just need a 12volt signal + the 1k resistor off the ms?
thanks

garth