Looking to see if anyone has run into this problem? Put on some new turn signals, just alittle smaller than the stock ones not LEDs. And now have a rapid flash rate on left side only.
Yes, its common. Even non-led bulbs will create issues with the flasher relay if they are low wattage.
You can put in some resistors, keep the OEM flasher relay, and retain the self cancel function. Or buy a aftermarket electronic flasher like the custom dynamics one and it will work but auto cancel will no longer work. Do a tag search for " led" and "elfr" for more info