Mine's great. Perhaps your contacts aren't clean on the ECU or it ins't installed 100% flush and square to the ECU, thus causing the CEL and engine stalling.
2000 SVT Turbo 295hp/269ftlb@12psi
#1 for Bendix Brakes Kits!
Knuckles rebuilt w/new bearings $55
AUSSIE ENDLINKS $70
Gutted pre-cats $80/set
A lack of planning on your part does not constitute an emergency on mine!