2005 Nissan 350

I got a 05 350z, I’ve had it for three years now and had fun with it. Taken great care of it and has had oil always changed on time. Just gave it a new paint job with plastic dip and look great! Has had no issues runs great. The Dash light come on because of the new seats I put in it. and because of the O2 sensor when the previous owner put in the new Exhaust. It has a tuner on it but I’ve never really messed with it because I don’t know much about that stuff. Selling the car because I need a