This Outback has tires that are a year old. The catalytic converter was replaced about 1.5 years ago, and the spark plugs were have been replaced last year. There’s a check engine light code of P0420. I suspect it’s because I recently replaced the rear pipe catalytic converter. I’ve lowered the price to account for that. If you think the cost of fixing it is high, I’m open to negotiating. I’m planning to buy a new car soon, so I don’t want to deal with car repairs right now.