Okay this is probably something simple and I'm a idiot but I have 98 civic coupe and every time I turn on my left turn signal it blinks super fast but if I turn even my Parking lights on it'll blinker super slow. The right turn signal works perfectly fine. Any ideas? Thank you

 

Sounds like you installed the wrong bulb type.

 

had the car for about 2 years never installed a bulb and for awhile it worked perfectly fine just a few months ago it started doing this

 

Check whether any hazard/blinker bulbs are not working.

 

i went and check the wiring and it hella butched like someone tried wiring in side markers or something but got it all fixed and works good now thanks man.

 

Ive got the same issue in my 2000 EJ8, bulbs I bought were 1157A...grounds look good any other suggestions....only the left side is doing this