is there a coil pack or tach lead wire that can be used as a shift light trigger ? OH btw this is on a 2009 G8 GT


Asked by Apr 13, 2014 at 09:11 AM about the 2009 Pontiac G8 GT

Question type: Car Customization

cant find anyone who knows location and color of the wire i need to use to activate shift light !!! HELP !?!?!?!?       Thanks

4 Answers

Norm Davis

No. If you want a shift trigger light you'll need an aftermarket tach with a shift light built in. Then you set the light at any RPM you want. You could probably get a 'mini' tach to fit somewhere. Check these:


and whats going to trigger the add on tach?

Norm Davis

Any coil pack that's convenient. Older cars had a single coil or distributor wire you could tap, that isn't the case anymore. Most people just tap the number one coil ( purple ) wire for the tach._____________ If you really just want a shift light, I take back what i said about having to install a tach. TORQ makes a standalone shift light. Try this:______ Looks real easy to install.


Hey would this be the same for a G8 v6?

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