HI Dan, I took the egr line off from the intake and plugged the intake but it didn't make any difference in vacuum. I just went through my fourth tank of gas since the groove and the mileage still hasn't increased actually it's gotten a little worse.
Do you have any more suggestions of what might be wrong?
Nathan

okay put everything back to norm egr pcv everything but groove.If you have access to car scanner give me the fuel trims the ecu is not cooperating reset the ecu by taking off batt cables. next test drive and see if gains start the car scanner will tell us without driving but if no acess then you must drive. if you check fuel trims check at idle and 2000 rpms no load is ok this will really help us. dan gadgetman mo.

Hi Dan I put everything back to the way it was before except the groove and I took it in to get the fuel trims.
The short term at idle was -1.6 to 1.4, at 2000 RPM it was -7.8 to 0.
Long term at idle was 3.3 and 0.4 @ 2000 RPM
Nathan

looks like those numbers are going to cut fuel, test drive for awhile and I think you`llproably see some gains.dont be agressive for the first 100 miles or so so the ecu has time to lock in fuel trims. dan gadgetman mo. keep us posted