Electrical issues

[Chadplove1970rs]

I have a 1970 rs with a 3.2. The speedometer blinks when lights are on, left turn single activates both right and left singles and the right hazard/blinker single stays on when lights are on... initial thoughts?

[Bill Douglas]

I'm no expert and the other guys will have some more scientific answers. But... my SC also had some weird electrical things going on which all disappeared when I cleaned all the grounds/earths.

[Luccia at Pelican Parts]

Sounds like some interesting gremlins going on. I'm posting an electrical diagnosis tech article for you below. Take a peek and see if it might help you diagnose your issue. Good luck!

Porsche 911 Electrical Problem Troubleshooting | 911 (1965-89) - 930 Turbo (1975-89) | Pelican Parts DIY Maintenance Article

[ganun]

Easiest to do is remove all the bulbs F & R and L&R and make sure they are the ones specified. I think (maybe) inside the actual light there is stamped the wattage, but if not, you'll have to do some research. The wrong bulb will cause all kind of weirdness you describe.