Ok i bought a cheap little tach for my 96 cavi, and i have all of the wires hooked up save one. Its green and it tells me to hook it to the negative side of the ignition coil ( these are DIS right?). Well problem is i dont know which one that is, or how to hook into it. So it would be a lot of help if someone could tell me where and how to do this, or another place that i can splice into that the wire could read the rpms from. thanks
a little more specific please. i have a wire splicer that came with it, but i dont know where it would go since i dont have a tach wire.
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this is what you need to get the proper tach signal, or from what i understand if you can set your tach to be used on a 2 cylender application then set it to that and it will work ok, but the tach adapter is your best bet
You'll never touch God's hand
You'll never taste God's breath
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ok thanks, i dont know why my instructions told me to hook it to the negative side of the coil do you? will my tach work with that adapter since it isnt an auto meter product? and there must be some other way than that. i would think.
our ignition system has two coils. each coil has a trigger wire. if you hook the tach into either one of those wires, you will read exactly HALF the rpm you're at (because it's one coil... 2 cylinders). A tach adapter will get a signal from the main power wire to the coils (which gets a quick pulse in it every time they fire), and convert it to a tach signal (which you can use for the tach. IF, however, your tach has a selector for number of cylinders, then you can tap into the orange or white wires.
my bro installed a tach in my 97 cavalier, it gets power but its not installed into the computer, where would i install the tech adaptor, into the fuse box or ecu.
check my cardomain page, i have pics of how mine is hooked up to the coil pack. you have to cut the pink wire on the 2pin harness coming off the coil pack. then w/ the automtere adaptor, you run one green wire to one end, and the other to the other end
