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Electric engineers in the house?

Old Dec 10, 2001 | 03:55 PM
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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.
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Old Dec 10, 2001 | 03:58 PM
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could be because they draw a different voltage in order for them to work right aw hell i dont know. i know the ones that apc makes those huge bulk ones with like 10 led reds in it work fine on the stock wiring.
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Old Dec 10, 2001 | 04:25 PM
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Originally posted by "Someone"

Originally posted by Joker
could be because they draw a different voltage in order for them to work right aw hell i dont know. i know the ones that apc makes those huge bulk ones with like 10 led reds in it work fine on the stock wiring.
Very true in both voltage and current aspects thus acting like theres nothing there. You could probably do it with the right setup depending on what was needed.
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Old Dec 10, 2001 | 04:33 PM
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Well...its not a voltage thing. The cars electrical system regulates what voltage is supplied. Your problem is the current that is being drawn buy the LED lights. Its probably not enough. did you just buy the LEDs or are they made specifically for your car. If you have a multimeter you may be able to figure out what you need. Take the original bulb and read the resistance across the element in Ohms. Then read the LED resistance. Then just wire the appropriate number of LEDs in parralel to match the resistance of the original bulb. If that doesnt work.....hell i dont know!
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Old Dec 11, 2001 | 06:17 AM
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Yeah they where the right bulbs 3157 and they where APC. It is a cluster of 10 LEDs and there are two resistors inside the housing of each bulb. I will try the Ohms tester and see how it works Thanks!
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Old Dec 17, 2001 | 03:17 AM
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For shits and giggles try to find a heavy duty flasher. Dunno if they make them for your car or not. HD flashers usually are needed for towing when the flasher has to run all the trailer lights also. That might make them blink more consistantly. I did the 1157 leds in a Diplomat with no problems. Blinked normal. Just an idea. LEDS have a different resistance when they are on. Same as with blubs. Best thing is to measure the current. Then add resistance to the leds if needed to match the blubs. Only thing is that will also make the leds dimmer.
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