So my brother installed a set of reverse indigo gauges in my car a few months ago.. I told him not to touch any needle no matter what, but he touched all of em anyway. Now, my tach idles at high 2000+ when I first start the car up and settles down to a minimum 1800 after a while. At first, I thought the strange idle was normal since the tach needle doesn't go all the way down to zero on the new gauge face, because the pointy black plastic is preventing it. Basically, the tach face needs to be redrilled/reseated.
I took my car to a friend's house yesterday and he told me my car is idling fine just by listening to the engine. I didn't wanna believe him so I asked his cousin and he said the same thing. BTW, they both know their stuff because auto sh*t pretty much runs in their family. They told me my tach needs to be recalibrated but I have no clue how to do it. I did a search but nothing came up. The cheepo chilton's manual that I have also doesn't cover it.
Also, is it normal for my tach to jump to 1000 when I put the ignition to ACC/battery mode?
TIA
but do I set the ignition to ACC or crank it all the way up and then reseat the needle? :help