[Daox]

In my case, the intake air temp sensor is upstream of the throttle, so it would not see the increase in temp from the EGR. I'm thinking this is a good thing as I want to advance timing as EGR flow increases due to slower flame speed. If the intake temp sensor sees an increase in air temp it may retard timing. That is my thought at least. Input on this would be good.

The EGR will be added directly after the throttle body. This is the location that Toyota adds the EGR. I thought I mentioned that, but now its clarified.

The EGR will be cooled by the TDI EGR cooler. Its a slightly more complex setup, but not really that much more. With the cooler being on the right side of the engine, I have a heater line right there to tap into. I just need to buy one short piece of hose (or dig through my hoses to see if I have one the right size). By cooling the EGR with the TDI cooler, I also ensure that temps will be more consistent and also that there won't be any condensation.