Hello, I recently installed a Boss 302 in my '14 GT and I have a question about the purge valve. You said that it's optional but it sends a check engine
light if you go that route. I installed mine but whenever my gas tank gets to half capacity, my check engine light turns on. When I fill it up, it shuts off again. The code it sends is P2068 if I remember correctly. Do you know the exact code it sends when not using the purge valve?