Wiring up a Push Start, which wire do I tap?

[jdmrh07]

Hey guys, I'm hooking up a push start in my Monza, the kind where you put the key in, and turn it one click, for ignition & fuel, then push the button for the starter.

So obviously I'm just tapping into the starter wire, or should I say, rewiring the starter. I figure the simplest way to go is to find which wire that comes off the steering column is the starter wire.

I've been tracing wires from a GM diagram, and I think I've narrowed it down a bit. But instead of playing with live wires, is there anybody that could just tell me which wire it is?

thanks!!!

(I bet I could've asked this with out the long explanation )

[v8astregt]

Pretty much every GM I can think of from the 60's up used the purple wire for the starter. Just trace that under the hood and that should be what you need.

[NixVegaGT]

I'm glad you asked the question, Jonny. I'm planning on doing the same thing with my car. Thanks for the answer, Josh.s

[jdmrh07]

Pretty much every GM I can think of from the 60's up used the purple wire for the starter. Just trace that under the hood and that should be what you need.

Hey thanks Josh--- But here's the catch, which purple wire? I traced the starter from a schematic to a purple wire. I got under my dash and found 2 purple wires, both in the steering column vicinity. One was big, and the other was little--- What do you think?

[v8astregt]

It should be the larger wire, since it does have slightly higher current. At least that's what I remember on my Astre. It has a large purple wire through the starter interlock (75 only). Put some voltage to that, that should do it.

[jdmrh07]

I went to go hook it up, and it was different than i thought. The larger purple wire has a white stripe. The other is a solid purple wire that is slightly smaller.

I followed the solid purple wire and it goes with 5 or so other wires straight up into the steering column. So I'm guessing thats it--- but when I went to put power to it, I discovered my actual push start button is a piece of junk, and doesn't work!!! So gotta go get a good one...

[NixVegaGT]

What kind of push button is needed....

[jdmrh07]

What kind of push button is needed....

Any momentary switch will do, but as far as my interior theme is going, I'de like a nice big, heavy duty, silver button. Shouldn't be hard to find.

Anybody know what that purple w/ white stripe wire goes to?

[spencerforhire]

The large purple/white goes from the ignition switch to the neutral safety(clutch switch on a std., shifter on auto.) and the large purple to the starter solenoid. If you wish to bypass the neutral safety, obviously you need to use the purple. A note of caution on push button switches- the starter can draw upwards of 30-50 amps; use a seriously heavy-duty switch. If you want to be able to crank the engine over without starting(such as in a race car to set the valve lash or prime the oil pump), hook up the other side of the switch to the battery+ (12g red) at the column. Otherwise hook to the large pink(ign) The supplied diagram is for a 75, but with any H-body there's no difference as far as the start circuit is concerned.

[jdmrh07]

Purp= Solid Purple Wire
PurpWht = Purple Wire w/ White Stripe

Hey Spencer, thanks for the info! About the amp rating on this, if I'm running the push start switch through a seperate fuse box to the battery, do I really need a fuse in there bigger than 25 amps?

Also, here is some info I didn't include before sorry!!! (I just assumed everybody with a Monza has a Quarter Stick Shifter right? ) So anyway I hooked up a B&M Pro Stick; Ran the PurpWht to the neutral safety switch on the pro stick. Then ran the Purp from the starter to the neutral safety switch. (which is normal ignition key start operation)

So Now I'm gonna change it from Key Start, to Push Start. I got my red (hot) wire from the Push Start Button---- Trying to figure out where I tap it into that circuit--- I sware its probably simple as hell, but I'm confused--- actually I'll bet it doesn't matter where I tap into that circuit; right? as long as 12 volts is applied to the PurpWht, and the shifter is in park or neutral, the circuit should be complete.

Before I was confused about which wire goes where because I thought the PurpWht had something to do with the Ignition. The Pink wire goes to the Ignition!

So my guess is just tap into the PurpWht------- cuz I don't want to bypass the neutral safety switch.