Bpitts23

Just installed h4 headlights with hids. Bought h4 adapter with relays everything is wired. Checked prongs and have 14 14 and 0 on prongs per multi meter. Still piss poor low beam lighting. A flash light shines brighter. Any suggestions

se7enine

iTrader: (2)

If they are cheap FleaBay hids throw them away. If they are installed in a stock halogen reflector then take them out.

Bpitts23

They were from Ebay. But just ordered the led headlights. Is that better.

se7enine

iTrader: (2)

Only if they are Truck-Lite LED's.

Bpitts23

Yes they are from truck lite. But still why is my headlights dim with hids. Is the plug configuring wrong . Also the h4 conversion plug shows 14 volts on 1 prong and 0 on the other 2. Is that correct .

Discombobulated

se7enine

iTrader: (2)

What HID's did you buy and did you test them directly to 12V before installation? I always test the ballasts, igniter and bulbs before use.

RAD4Runner

Bulb upgrades are useless if you keep stock wiring. In fact higher power bulbs could damage stock wiring and your headlight dimmer combo switch.
H4 conversion harness should come before bulb upgrade. Pls search more.

se7enine

iTrader: (2)

I think he said he got an H4 adapter with relays.

RAD4Runner

Oh, I see.

Did you try the stock halogens to test if your H4 conversion harness is good?
Which prongs are which, how are you probing and in what position? Please see signature.

When you get your conversion harness working, I recommend Truck-lites LED, instead. Plug and play, I switched mine in the parking lot.
PLUS, they are not polarity-specific. Work with switched-ground (stock) or switched positive (most H4 conversion harnesses).

Bpitts23

This is how the prong is set up now for h4 harness .

se7enine

iTrader: (2)

Cheap HIDs is one reason for low output and on top of that 8000k bulbs make it even worse. It also looks like a shielded bulb and a poorly designed reflector housing that weren't designed to work together so less usable light actually reflects out.

RAD4Runner

Tnx for the info, but... simple things are best.
I repeat,
Did you try the stock halogens to test if your H4 conversion harness is good?

thefishguy77

iTrader: (1)

Rad. What harness do you recommend for the truck-lite leds.
Mine is a stock 85 4runner SR5

RAD4Runner

Happy New Year, Guys!

I simply rewired mine to add a relay in place of the dimmer combo switches, HERE. Electrically simple, retains my switched-ground system and uses only one relay but to some it may feel like performing surgery - LOL!

For most people, a good H4 (refers the connector) conversion harness should work. (Sorry I haven't personally tried the commercial ones.) Most H4 conversion harnesses convert to switched-positive. Some LED lights work only with switched-ground or with switched-positive. My Truck-lites work on switched-ground that I have, and TL's tech support confirms that they will also work on switched-positive.

RAD4Runner

That's correct pin configuration^^^
You need to do tests if you are to figure this out.
Start with STOCK wiring and do tests I describe or prescribe (LOL) here.
Then let us know what you find out.