me and my buddy were trying to install LED bulbs for the front and back turn signals on my 98 I30t and the the rear signals work fine but when we changed the front signal bulbs and the side marker wedges all of a sudden when you hit the signal they all remained constant. has anybody experienced the same thing? also the timing of the LEDs is a little faster than stock. if you have or if you know how to get around this by using all LED bulbs and have it so it works the same let me know?

 

You are replacing the typical bulb with a LED replacement? Like the APC ones? I would imagine what you have is a bad bulb. As you probably know the rear blinker is a single element bulb and the front is a dual filiment bulb. Meaning that the bulb burns then burns brighter when the blinker is turned on. I would suggest using (if you haven't tried it) 1156 AND 1157 bulbs in their appropriate places. I hope I don't sound like I'm flaming. I'm not trying too.

 

I tried an 1156 in my blinker and it didnt work at all. I tried two bulbs. Guess it wasnt made for our cars.