hello all, i am new to the forum. As for my question, i just bought my sister a 2004 scion xB. Long story short i had her smog it (we live in California) and it failed for a code that was p0171 so i replaced the MAF sensor. But the smog place also told her the check engine light doesn't come on at all. I pulled the cluster housing and face to find the check engine light led was removed as well as the traction control light. I realize people do this to sell a bad car, my bad for not checking when i bought the car. My question is can i buy replacement led's to fix the issue? Or do i have to buy a replacement cluster panel so the car can smog? We're currently stuck not being able to register the car because of this problem. Any help is appreciated. Thanks much.