Re: headlights affect tach
Well, since I searched, and this was the only thread that seemed to match my problems - I too would like to know. Does this sound like a ground for the tach, or headlights? I had an alarm that was installed poorly in my car, and I figured that was the cause for this problem. In my case when I turn the headlights or parking lights (anything that turns on the interior guage lighting) on, the oil guage drops to 0 psi, and the tach freezes at around 1000 rpm. I removed the alarm carefully, and completely - and I still have this issue. Any ideas?