Hey guys so I did the simple LED conversion on my gauge cluster by simply ordering some T10 led's (non canbus) and they were really bright and my gauges worked great! but then the lights on them after a few weeks started to flicker, so the big thing about that is people use canbus LED's (basically just a LED with a resistor) and then that should take away the flicker everyone is saying but my problem is that I went and bought a set of canbus LED's and I cant even get them to light up in the gauge cluster (but they work great in the license plate light part so I know the LED's are working) I think its really strange, is anyone else having this same issue? is there a different way I should go about fixing this flicker issue?

Lower quality LEDs will start flickering after a while.
It matters how you put the bulbs, they have positive and negative terminals, rotate them 180 and see if they work.

Thanks yeah I tried rotating them and still nothing, keep in mind these are only the canbus LEDs, the noncabus LEDs work but very soon start flickering. are you running LEDs in your celica? Have you had success with them? If so you can direct me where to buy good quality LEDs that wont flicker to use in my gauges. Thank you for your time and help guys!

I don't like LED bulbs in the speedo, the light is not even and has hot spots.
But I have heard people being happy with stuff from superbrightleds.com

Our cars do not have a controlled area network so spending the money for CANBUS/error free bulbs is just throwing money away. As Teo said, flickering is caused by cheap bulbs beginning to fail, and has nothing to do with a CANBUS system. I've been using Diode Dynamics bulbs for the last four years and haven't had one single issue out of them. I've heard that most LED's can't cope with voltage changes either- for instance, using the dimmer for your gauge cluster. How true that is, I can't say.

I put what is inexpensive LEDs - burned after 1.5 months.