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'91 Reatta Headlight Replacement w/ LED's


ship

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I know this topic has been discussed previously, but I can't seem to find the info while searching in the journal/forum.  Can you tell me what LED's you bought, and I seem to remember that added adapters were possibly needed(?).

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I bought a brand called Truc lites. Expensive but great. Back in the day they had short cords out of the back of the bulb. I had to extend the cords so they wouldn't get hung up on the body of the car as the light pod rotates up and down.

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13 hours ago, DAVES89 said:

I bought a brand called Truc lites. Expensive but great. Back in the day they had short cords out of the back of the bulb. I had to extend the cords so they wouldn't get hung up on the body of the car as the light pod rotates up and down.

Thanks, Dave.

Edited by ship
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I installed LED lights, had no issue with short cords.  When I push the lights button on the dash, the pods go up and headlights shine no problem.  But when I push the lights button to disengage the headlights the pods do not go down (lights do go off, though).  I thought you guys found a remedy for this, and if so, what was it?   Thanks

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I use a relay harness that Ronnie picked out years ago from Amazon. Maybe he will post what it was. What bulbs did you go with?

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This is the harness I ordered from Amazon in 2014. It has doubled in price since then. I never did use it. I sold it a long time ago to Dave or someone else on the forum. There might be something similar on Amazon now that is better and maybe cheaper. 

 

Amazon.com: Octane Lighting H4 100w Ceramic Fused PnP Heavy Duty Automotive Wiring Harness Headlight Foglight Booster Relay 12v : Automotive

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I hope it works. I have to admit, I don't understand what it's intended to do or how it does it.

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1 hour ago, Ronnie said:

I hope it works. I have to admit, I don't understand what it's intended to do or how it does it.

Me neither!!

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Common problem with LED's which is being solved by a voltage booster harness for high power or brighter conventional headlights. The headlight door must see ground when the lights are turned off or the door won't close. Designed to let you know a light is burned out and encourage you to repair it. LED's are diodes which prevent a ground path much like a check valve does for water. The booster harness has enough of a ground path through the activation side of the relays to allow the voltage to bleed off and the doors will close. The harness is plug and play so it is convenient rather than adding a path to ground some other way or cutting and grounding the offending wire in the door module harness.

Edited by 2seater
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2seater, thanks for the info.  It's now making some logical sense to me.  Hopefully, the harnesses I've purchased will be the answer to allowing the lights to close.  I will report back once they arrive, and I complete their installation. 

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6 hours ago, ship said:

Me neither!!

How did you decide on those boxes that you ordered? Maybe a better option for your '91 model? The price is certainly reasonable compared to a harness with relays. The description for them is confusing to me.

 

headlight boxes.jpg

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It will be interesting to see what those boxes do. There are two types of headlight activation schemes, one is switched positive, which the Reatta uses, the other is switched ground, sort of the way our injectors work. I do not know if the 91 may use a different scheme than earlier years. There are certainly many little things that are different.

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7 hours ago, Ronnie said:

How did you decide on those boxes that you ordered? Maybe a better option for your '91 model? The price is certainly reasonable compared to a harness with relays. The description for them is confusing to me.

 

headlight boxes.jpg

Based on their description, they seem to accomplish the same result as the example harness you provided, Ronnie.  It's totally a shot in the dark, though.  We'll see once they arrive and I get them installed.  I will report back.

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  • 1 month later...

I intend to finish my project of replacing my headlights with LEDs.  But, due to the continued cold weather and no heat in the car storage igloo, I don't expect to get back at it until at least April.  I will report back at around that time.  I haven't forgotten because it is one of my own pet peeves when people do not report back. 

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