welll i replaced my running park lamp the same bulb that stock z24 bumpers have but its on my import fighter, the turn signal, not the corner signal.......
anyways

I replaced the bulb, well as soon as i did that my same side passenger clear corner signal stopped working.... and when my headlights are on the signals are very dim........

very hard situation to explain, so if anyone has any idea try to follow along..... when my headlights are on the 2 green arrows for signalling are light up inside the car..... and when i signal the green arrow stays on and does not flash....... usually it does this when u need to replace bulbs, but i did that today, and its still doing it...... I can only think that maybe i have a bad ground somewhere? I have no clue....... i did the harness swap from a sunfire to cavalier over a year ago..... so that doesnt make sense, I dont know I messed around with it for a few hours and cannot find my problem

Well I would make sure all the lights are working around the youre car. Well if the all the lights work around the car, My 2 guesses would be either youre signal flasher is wornout. Or youre turn signal switch its self is no good.

Good Luck.