cause a low rpm hesitation??? I've done a search, and am not coming up with anything conclusive. The car was throwing an EGR code before the head/cam package, and the old EGR was reused and the DTC turned off via tuning. The car runs fine at part throttle, but when I go to wide open, it just cuts out for a split second and picks right back up. A tip-in hesitation sort of thing.

 

Yes - when my EGR was bad, there was a slight response delay at throttle tip-in. When going to WOT, though, I didn't have the same problem.

 

Mine is actually the exact opposite of that. Good at light throttle, hesitates for a sec going to WOT.