I tried to put l.e.d turn signals in my car and the computer acted like there where not even bulbs in the sockets. They would blink fast like the relay was bad and I had no interior light either. I put the regular bulbs back in and everything worked fine. Any ideas? Also they where not the super duper green indaglo strobe neon light either just red lights in red housing. I like the way l.e.d. lights blink.