hey guys wasn't sure where to post this so i thought i would try here. ok, i have a 5" autogage tach w/shiftlight, and i wired it according to directions... i put the green sending wire to the blue tach signal wire in dash, the red and white to the empty male plugs on the fusebox and i grounded it to a place where a stock wire was also grounded. my prob is this...everything works fine, but when i shut the car off the tach moves up past the 10thou rpm mark and stays there. when i start the car the needle falls back down. i moved the wires around to different sources but same result. i'm out of ideas, possibly bad ground?? this should be simple but maybe my brain is fried, ha ha. anyway thanks guys

 

Mine does that too. I don't worry too much about it.

 

so yours flicks to the top when the key is turned off? and stays there, then returns back to normal when you start the car? where do you have you wires going? so you think its ok like that...it would be nice if it were to remain at the bottom. thanks for the help

 

i have a non-autometer tach and it doesn't do that at all. i am pretty sure i used the blue wire for the tach signal. i ran power to the fuse box, used a ground point near the radio. the illumination i hooked up to the cig ligther illumination.

that was all i did...

 

weird...haha i dunno, hopefully soon i'll figure it out.

 

I hooked it up the same exact way that breaka_1_9 did. Mine doesn't always go to 10k, it will jump to any random RPM. The only thing that matters to me is that it works correctly while the car is running.

Kris

 

Just drop them an email. They helped me within a day or two, when I was having trouble with my fuel pressure gauge....

 

the only thing i can think of is the tach signal's ground is different than the ground you used???

i am stretching a bit on this one.

 

dude..that is perfectly normal for it to 'sit' somewhere when you turn it off. the gauge is metered off air, and it's just something they do bro. most all autometer's and almost every other tach that's metered off air. mine sits on '3k' when i shut it off. if it's workin fine when it's 'on', then you have nothing to worry about....it even mentions this in the instructions that came with it. autometer-