mrcubes2u

I am having the same problem with my 99 GS400 with 136K miles on it. The problem does not go away when you turn the key off, so I have been disconnecting the battery to "fix" it. I have not had any codes run yet, but if anyone has any suggestions about what would cause this, that would be great. Thanks.

I would love to take some photos, unfortunately I recently detroyed the LCD on my digi-cam. I will try and take some in the near future though. 4K will be the brightest, and 8K will be the purplest. I would suggest not going above the 6600 as mine are just the right amount of purple, and are just on the edge of not being bright enough. Hope that helps. HOOAH devil dog!!

righterI don't imagine that aftermarket ballasts would have much to do with the quality of the light. I think is has everything to do with the bulbs. If you are trying to be brighter to compensate for the foglights, you may want to stay with the stock bulbs. My understanding is that the higher the kelvin number on the bulbs the less light they output. Stock bulbs are 4300K, and the PIAA's are 6600K therfore they are not as bright, but their color temperature is more desirable (less yellow and more blue). Are your HID fogs stock? Are they yellow like most other GS foglights are?

[/quote I'm paying $355 for a pair of piaa's from my friend. I think I'm paying a little too much now. I bought mine at Speed Concept in Beaverton OR. They are just a few miles from PIAA's headquarters in Beaverton so I suppose that may have somthing to do with it. $355 still seems like a decent value because the bulbs MSRP for well over $400 on the PIAA site.

I just replaced my HID bulbs on my 99 GS400 with OEM HID's. I bought the PIAA D2S 6600K bulbs because the place I bought the bulbs did not have D2R's, and it seems to me by looking at the two bulbs side by side that the D2S would be better because they lack the reflective coating on the top of the bulb. Anyway, I had to cut a notch in the plastic on the base of the bulb so they would fit in my housing, but this was very easy. The light looks great, it is slightly bluer than OEM, but it is not at all purple or ricey. One concern I had about the lack of the coating on the bulb was glare for oncoming drivers but I drove all over tonight without anyone flashing their brights at me. All in all i think the PIAA bulbs are well worth it since I paid $300 for the pair, and the dealership wanted $370 for one, especially since there is a big improvement in light quality.

My trunk closes very hard, and is somewhat heavy (my daughter has a hard time lifting it), and I have the spoiler on my car. I wonder if my trunk is not balanced properly. How do I check this, and/or adjust it? Thanks.

What are "data dots"??

Do you remember where the instructions were found for changing the bulb? Is advanced auto parts online or local? Thanks

My driver side HID light goes purple right after it is turned on, and it is frequently just turning off. I know this could be either the bulb or the balast, but what is the most common cause? I know switching the bulbs would tell me, but getting the bulbs out and back in is an extreme PITA (I might be doing this all wrong, maybe someone can give a brief description on how to swap bulbs). Also the ballasts that I have seen online do not appear to be model specific, so if I buy a ballast would it be plug and play? Any advice is greatly appreciated.