Who set the injector correction.. I assume you now have a socketted ECU.. what was the correction number used?.. are you using a TT or NA ECU program. is the car wiring a native TT or NA.
Get a Conzult Cable, ECU Talk Software, and hook up to the ECU and see what its not liking ..
The ECU Idling Fuel Mixtures generally run lean.. The Running Fuel Mixtures have more room for adjustment.. I;ve had to richen up my Idling Mixtures to get a stable hot idle..