[keithmac]

Just to chime in again, my 1st gen is stock apart from boost control/ K+N induction kit/ Magnecore wires/ blow off valve and single outlet exhaust system.

It was running horrifically before I replaced the caps, runs a thousand times better now BUT I`ve been experiencing the 2800 to 3000 rpm flat spot/ lean out at part throttle and just below 0 psi to approx 3psi on the boost gauge.

I honesetly beleive it`s a quirk in the fuel map on the ECU, or is it possibly the change over from closed to open loop operation?. To be honest it doesn`t really get in the way for me but it would be nice to get it sorted. I`m running a Japanese GTO TT.