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350z Headlight issues. HELP!

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Old 05-06-2015, 03:21 PM
  #1  
shyun1250
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Default 350z Headlight issues. HELP!

Car: 2003 Nissan 350z

Headlights: Retrofitted 2006+ Bi Xenon 350z headlights.

Issue: Left headlight wont turn on.



Description:

The 2003 350z uses a hybrid xenon reflector/projector. As a result most people switch to the 2006+ model which runs a bi-xenon projector. I recently had the headlight retrofitted by Zleds out of Texas.
Work done: painted shroud, iron man halo, boomerang led etc.

When installed the left headlight refuses to turn on.


Trouble shooting done:
- Brand new TRS Morimoto bulbs
- Newer Matsushita ballasts are known to not like aftermarket bulbs so I got a bunch of gen 3/4 ballasts and tested all of them on the right headlight to make sure that they were compatible.
- I have 3 igniters that I also rotated to make sure that they work.
(According to Sam from Zled, as long as the above 3 component are in working order then the headlights itself shouldn't be the issue)
- I also tried plugging the left headlight into the right side. Both headlights work on the right side but NOT on the left.
- We thought it must be the harness then so we hooked up a 2003 set of headlights I had kicking around and the left side WORKED. (but still not the 06+ set)

After 3 hours of tinkering, I gave up and put everything back together. I drove it off and the left headlight magically decided to work. Once in a while it would go out again and then come back after a while. As of yesterday however, it hasn't come back on.

I'm really terrible at electrical work but these are the possible issues that I can see:
1. Grounding issues
2. Very old battery, Perhaps not enough power?
3. The separate harness for the iron man halo, led's etc are not hooked up yet, perhaps it's throwing everything off?
4. The harness on the car is 8 pin whereas my newer headlights are 7 pin.

Another trouble shooting method that Zled's told me was to WD40 the connection pins... is this safe?

Any input would be greatly appreciated... This is driving me nuts...
Old 05-06-2015, 03:30 PM
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bmccann101
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thats be a ground or a short in the connector or the harness if it goes on and off like that. Youve done the process of elimination on the headlights and hid gear.. now time to do it on connectors and harnesses.. a DMM is your new friend.
id not wd40.. but qd electronics spray cleaner is adviseable.

Last edited by bmccann101; 05-06-2015 at 03:34 PM.
Old 05-06-2015, 03:53 PM
  #3  
shyun1250
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Originally Posted by bmccann101
thats be a ground or a short in the connector or the harness if it goes on and off like that. Youve done the process of elimination on the headlights and hid gear.. now time to do it on connectors and harnesses.. a DMM is your new friend.
id not wd40.. but qd electronics spray cleaner is adviseable.
Yeah I assumed it would be either of those issues.
I was thinking of having a friend with a multimeter to help me out.
Yeah... I was hesitant when he said WD40, I'll look into QD electronics spray.

Thank you. Appreciate it.

Funny thing is I was busy posting on your build thread a few minutes ago.

Edit: By DMM I'm going to assume multimeter?

Last edited by shyun1250; 05-06-2015 at 03:55 PM.
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