Tach signal from ms3x

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Ms36262cobaltLS
MS/Extra Newbie
Posts: 4
Joined: Fri Apr 01, 2016 10:28 am

Tach signal from ms3x

Post by Ms36262cobaltLS »

I have a cobalt with aftermarket VDO tach looking for ways to wire in the tach signal my question is what's best way to wire it in? I have a ign-4 coil tower running my ignition could I just use one of the negative side wires on the tower plug? Or would tach output on megasquirt work with my VDO gauge ? Any input helps thanks
slow_hemi6
Super MS/Extra'er
Posts: 4122
Joined: Fri May 07, 2004 3:33 am
Location: Australia

Re: Tach signal from ms3x

Post by slow_hemi6 »

You can trigger from one of the negative sides of the IGN4 but you have to set your tach up for 2cyl. Needle might have a little jitter at idle but is steady when revs climb. But the tach out from the megasquirt should work fine also.
Find the Manuals up top under Quick links: Manuals. :RTFM:
Cheers Luke
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