THE ENGINE LIGHT WON'T GO OUT THERE IS A ERROR READING OF P0031 ON THE O2 SENSOR BEEN REPLACE 7 TO 10 TIMES AND THE LIGHT STILL STAYS ON EVEN RESETTING.I HAVE PROBLEMS YEAR AFTER YEAR WITH MY BRAKES OVER ALL I LOST TOTAL TRUST IN TOYOTA COROLLA PLUS A LOT MORE PROBLEMS TOYOTA TAKES FOREVER TO SEND OUT THE RECALL LETTERS. I HAVE 8 RECALLS BUT WHEN YOU GO LOOK IT UP ITS STATES NO RECALLS WELL THIS IS WHY I LOST TRUST TOYOTA DOESN'T CARE THEY USE TO BE THE BEST CAR EVER NOT ANYMORE.