Electrical/Wiring Question
I'm trying to track down what i guess is a bad ground.
Everytime i start my car, the tach/speedo, etc reset. They all sweep, trip meter resets etc. years ago this happened and it was due to a bad battery. i've got a brand new optima and it still does it.
Here's the reason why i think it's a ground. When i go to pop the clutch to do a burn out in the water box, the jolt to the car makes the tach/speedo reset, just like on start up.
so my question is where is the ground for all the wiring behind the dashboard? the only 1 i can think of is on the passenger side iirc.
any thoughts?
On each side of the dash, where it bolts down at the bottom, there are ground wires that go there.
Kinda hard to describe, but it's where the dash bolts down on the outside/bottom. It's a 13 mmm nut.
i will check both grounds mentioned above though.




