NHTSA Complaint #10119704 — 2004 NISSAN SENTRA

I HAVE A 2004 NISSAN SENTRA (1.8 ENGINE, AUTO TRANS). ON TWO OCCASIONS I HAVE EXPERIENCED THE ENGINE UNEXPECTEDLY REVVING UP WHILE STOPPED AT AN INTERSECTION WITH MY FOOT ON THE BRAKE AND NOT THE ACCELERATOR. SEVERAL MONTHS AGO, I WAS STOPPED AT A TRAFFIC LIGHT, CAR IN DRIVE, FOOT ON BRAKE. THE ENGINE BEGAN STEADILY INCREASING THE IDLE SPEED AND THE ENGINE REVVED (WITH MY FOOT TON THE BRAKE THE WHOLE TIME) TO I WOULD GUESS 2500-3000 RPMS. JUST AS QUICKLY, REVVING CEASED AND THE ENGINE RETURNED TO A NORMAL IDLE SPEED. THE INCREASE AND DECREASE IN IDLE SPEED PROBABLY OCCURRED OVER ABOUT 5-8 SECONDS. ABOUT TWO WEEKS AGO, I HAD A SIMILAR EPISODE, AGAIN WHILE STOPPED AT A LIGHT, WITH THE CAR IN DRIVE AND MY FOOT ON THE BREAK. THIS TIME, THE ENGINE BEGAN TO REV AT AN EVEN HIGHER RPM RATE. I PUT THE CAR IN NEUTRAL AND THE CAR REVVED VIOLENTLY AT A RATE THAT MUST HAVE BEEN APPROACHING FULL THROTTLE. IT SORT OF REVVED FULL AND THEN BACKED OFF SLIGHTLY SEVERAL TIMES BEFORE I TURNED THE IGNITION OFF. ONCE THE ENGINE SHUT OFF, I RESTARTED THE CAR AND EVERYTHING WAS BACK TO NORMAL. I TOOK THE CAR TO THE DEALER AND THEY COULD NOT DUPLICATE THE PROBLEM. THEY ADJUSTED THE IDLE BUT I HAVE NO CONFIDENCE THAT THE PROBLEM IS RESOLVED. THIS IS A SAFETY ISSUE, IT IS MY DAUGHTER'S CAR, AND I AM CONCERNED. I SUSPECT A COMPUTER FAILURE OF SOME KIND. NISSAN MUST BE PRESSURED TO RESOLVE THIS ISSUE.