Morimoto turn signal flashing quickly

Left turn signal starting flashing 2-3x faster than regular and not all the lights light up during the flashing. However, all lights are operational and working when I engage the parking lights or the emergency flashers. Tail lights appear to be fully functioning and all LEDs are working. I did recently install some raptor lights for the grill and running the wires through the firewall to the inside fuse panel, but the turn signals still flash 2-3x faster even when I completely disconnect the raptors. Any ideas what is causing this or how to diagnose the issue?

 

Welcome to the forum. Hyper flash is caused by the resistance in the circuit being too low. Sounds like you’re right on the ragged edge (thus the intermittent nature) so if you add a 10 Ohm resistor you should be fine.

 

Expensive lights,cheap leds.

 

Thank you for this. Apologies for being a newbie at this, but what slot should I add the 10 ohm resistor? It's doing it even when I remove the raptor lights entirely.

 

The resistor goes in series (in-line) with the wire to the led, not across the wires.

 

Hyperflash. Not enough resistance and thus it flashes faster. This is not an issue with your parking or tail lights because they are solidly on while your turn signal is not.

You can get around this by getting some CANBUS bulbs or wiring in resistors. Try swapping bulb sides and see if it's perhaps just the bulb that's the issue too.

 

I found this enlightening. How To Install LED Resistors - Everything You Need To Know | Headlight Revolution - YouTube