MSD STOCK TACH NOT WORKING

[jman]

I have an 85 corolla sr5 with a 3tc swap, I hooked the tach wire to the msd output and the tach wont work. Then I hooked it up to the negative on the coil and still wont work. Does anyone know what I need to do to get my stock tach to work?

[BOBLOOK]

Hi there

Some tach require you to use of an Tach adapter inline with the ciol and msd

Check msd for the correct adapter

[jman]

Thanks for the info