[tbitz]

Wckrause,

When I had the engine out this winter to rebuild my transmission, I fixed up all the rusted sheet metal. There is a hole (2.5" dia) on the left side of the rear sheet metal which I am not sure what it was for. Maybe the pipes from the EGR passed through it? I don't have EGR anymore. I have plugged this hole with some aluminium tape.

My fuel injection ECU (Megasquirt) is a "pressure density" system, so it has a pressure sensor built in. I will place the sensing tube at various locations in the engine bay and gather some data. The ECU plugs directly into my laptop so I can get real-time data as I drive. When gathing the data I will try and keep the conditions the same (speed, rpm, etc...).