My 2001 Camry LE (4cyl.) had the check engine light come on and i had it read at Autozone, they said the codes were
1. P0440 (x2)
2. P0441 (x2)
3. P0446 (x2)
4. P0300
After I had it reset, I drove for appx. 200 miles and then the engine started running heavy and seems loud.
Is it okay to drive like this, and what seems to be the problem?