WITH MY 1999 NISSAN MAXIMA SE V6, EGR VALVE RELATED ISSUES WERE DETECTED AND ENGINE LIGHT STARTED TO COME UP SOON AFTER THE IGNITION. ACCORDING TO NISSAN DEALER, OXYGEN SENSORS AND EGR VALVES WORK IS NEED THAT WOULD COST $1800 OR MORE. AT THAT TIME THE CAR MILEAGE WAS AROUND 80,000. I COULD NOT AFFORD TO FIX THAT. BUT LATER ONE OF THE ROD IN THE ENGINE BROKEN, FIRE STARTED UNDER THE ENGINE WHILE I WAS DRIVING AT 70 M/H ON THE HIGHWAY. MY FAMILY WAS IN A GREAT DANGER AND WE WERE LUCKY TO SURVIVE WITH THE HELP OF POLICE AND FIRE ENGINE WHEN SOMEONE CALLED 911. THERE HAS BEEN ANOTHER COMPLAIN ABOUT EGR VALUE ON NHTSA WEB SITE BY ANOTHER NISSAN MAXIMA OWNER. *TR