What was found
ALT SPEED MISMATCH ON TAKEOFF ROLL CAPT SIDE INDICATED APPROXIMATELY 40 KTS WHILE F/O SIDE INDICATED APPROXIMATELY 90 KTS. AT FAIL EICAS MESSAGE ASSOCIATED WITH MASTER CAUTION DISPLAYED. REJECTED TAKEOFF AND RETURNED TO GATE. REMOVED FROM SERVICE. C/W E175 FIM TASK 22-11-00-810-93M-A PERFORMED RESET OF THE MAU1 PROC1 MODULE RESET TEST PASS. NO CURRENT FAULTS IN THE CMC NOTED. DOWNLOADED ACMF & FHDB REPORTS REF TASK CARD E175-45-45-00-QE01 AND SENT THEM TO EMBRAER REP. SENSOR BLOCKED BY A BUG. REMOVED & REPLACED #1 INTEGRATED PITOT STATIC AOA SENSOR. RETURNED TO SERVICE.