Where's your NVLD Pump and Canister?
I have a couple reasons. One is I want to minimize the number of DTCs that show up. From the info in the service manual it looks like there is a large number of codes that can appear if I don't use the NVLD pump.
Another is I think it is irresponsible to not have a vapor canister. It is one of the few emission devices that I don't see as having a negative impact on performance. If I'm going to have a vapor canister it might as well be one designed to work with the engine.