Originally Posted by
RustRat
Something's wrong with my new Miata. I am guessing bad ground points, but electricals is not my strong point.
Symptoms I noticed:
•pop-ups won't open when I turn on the headlights, or will open for 5-10 seconds, and then close. Headlights remain turned on, and light in my engine bay. I have to press the pop-up button from the console to open them.
•the newly installed radio won't turn the volume up or down as it should. If I spin the knob to turn the volume up, it will go up, then down, then up again, until it settles at a slightly higher point than it was before.
•radio will lose signal from the antenna if there is any other form of electrical load in the cabin. For example, if I plug in a charger in the lighter, reception becomes slightly worse. If I plug in my phone on the charger, reception becomes even worse. If I use my windows, reception becomes worse, etc.
•Last night I noticed that when I my lights turned on, and also the alarms/emergency stop lights (brain fart, can't remember what they are called), the tach needle dips every time the relay clicks.
•Finally, I don't know if it's related, but even though the car is bone stock, it has trouble idling, especially when cold. if I blip the throttle it will shut off occasionally.
Any ideas? Harry suggested to check battery and alternator outputs at idle. Will do that later today.
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