My 2003 Corolla has 80000 miles on it. I just got an oil change 2 days ago (not sure if this is a factor or not) and this morning my check engine light was on. I took it to a discount auto parts store and they did a diagnostic check on it for free. The report said:

DTC (Codes)

P0440
EVAP Emission
Control System
Malfunction

P0441
EVAP Emission
Control System
Malfunction

P0446
EVAP Emission
Control System
Malfunction

DTC Pending (Codes)

P0440
EVAP Emission
Control System
Malfunction

P0441
EVAP Emission
Control System
Malfunction

P0446
EVAP Emission
Control System
Malfunction

They told me to check the air filter to see if it got changed out during the oil change. It didn't get changed out, but it was still relatively clean so they left it in. Then they told me to just bring it to the dealer. Anyone have any experience similar to this??