Discussion Starter · #1 ·
I love my Subaru to death and recently the Subie's been acting up. After some hard acceleration my car started to shudder and stutter. The check engine light came on during this. I read the codes which were p303 and p303pd. The car runs fine when I drive like a grandma but any hard acceleration the car just dies. I also noticed the car has a hard time getting into gear when I accelerate now and then. I believe its a cracked spark plug but I'm not quite sure.