What was found
ON TAKEOFF, SHORTLY AFTER GEAR RETRACTION ECAM SHOWED NO PRESSURIZATION. PRESS PAGE SHOWED BOTH NR 2 FWD AND AFT OUTFLOW VALVES FULL OPEN AND CABIN V/S PEGGED IN CLIMB. TURNED OFF NR 2 REG NO EFFECT. TRIED TURNING OFF BOTH REG AND USING MANUAL PRESS WITH V/S CONTROL, NO EFFECT. RETURNED TO KIAH. PERFORMED ADJ. AND TEST PER M/M 21-31-00-5 01, ALL SYSTEM TEST GOOD. ALSO CHECKED WIRING, ALL CHECKED GOOD.