This is a large leak code for the emissions system . I checked the gas cap and the evap canister and hoses n cracks or anything obvious, I cant find a leak. I have got battery dis connected right now. trying to reset the code. Is there any thing else you can think of that would trigger this? Could the cap be bad and you smell gas? The only odd thing is that I have a coolant leak too both started at the same time within a day of each other is this possibly related? any thoughts?