I had mine in the EGR hole, but the throttle plate is right infront of that hole, and at closed throttle, the readings were a bit iffy. I now have it in the intake charge pipe, about 18-20 inches before the throttle body. Its working excellent there. I just found a metal spacer that i could use for a weld in bung. I then drilled the proper size hole and tapped it for the NPT thread of the sensor. Then i just welded the new bung into the intake piping.

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)