hope someone can help me here... all of the lights in my '90 TII constantly flash while the engine is running. it seems to be in time with the ignition because when i increase the revs the flashing increases too. once i've driven for a while it does calm down a bit but soon comes back just as bad. when i say all of the lights i mean interior and exterior - headlights and all. i tried putting extra grounds in from the battery to the chassis and alternator to battery but that just made it worse ! i have tried searching the forum but can't seem to find this particular problem. please help !

 

I have the same problem, so i posted a thread a while back and was told that the dim/lheadlight switch is broken.
Ill have to look into that soon

 

yeah I would say the headlight switch is failing if it is the headlights and tail lights.

I am assuming that this does not happen when the light switch is in the off position.