I have a 99 100 series, the keys won’t start the car. It turns over, but it doesn’t engage. I was told that the keys are not programmed to the PCM. Took it to the dealer, they said they can’t program the keys, and their scan says that there are too many key codes on the PCM. I need to replace the PCM, but as we all know, it discontinued has anyone dealt with this? They said do not install a used one. Need recommendations.