Quote Originally Posted by etlsport View Post
the EGR actually helps your mileage.. at least if its clogged up.. try cleaning it first and making sure that the wires are properly connected to it
yeah I'll definitely try cleaning it first.

I would think that an EGR would hurt you mileage since it's routing the exhaust fumes (which is theoretically devoid of oxygen) back to your intake... wouldn't the reduction in burnable air cause a less complete burn?