2001 INFINITI I30 Structure Problems

THIS WELL MAINTAINED 2001 INFINITI I30 WITH 74,000 MILES HAS BEEN DRIVEN FOR APPROX. 11.5 YEARS BY THE ORIGINAL OWNER AND SPOUSE IN THE CINCINNATI AREA. THE CAR HAS BEEN GARAGED 99% OF ALL EVENINGS DURING THAT TIME AND HAS NEVER BEEN IN AN ACCIDENT. APPROXIMATELY 2008 THE LOWER RADIATOR SUPPORT (FRONT CROSS FRAME TIE BAR) STARTED TO RUST NEAR THE CENTER OF THIS BOXED FRAME MEMBER. PORTIONS OF THE TOP AND FRONT SIDE OF THIS FRAME MEMBER RUSTED THROUGH COMPLETELY SOME TIME IN 2012. THE HOOD LATCH MECHANISM AND HORN ARE FASTENED TO A VERTICAL STEEL SUPPORT THAT IS BOLTED TO THE FRONT OF THIS FRAME MEMBER, JUST LEFT OF THE RUST PERFORATION. WE INTEND TO DRIVE THIS CAR FOR MANY MORE YEARS AS WE HAVE IN THE PAST WITH SEVERAL OTHER CARS IF THIS DOES NOT BECOME A SAFETY PROBLEM, IF IT HASN'T ALREADY. MY GUESS IS WE...

2001 INFINITI I30. ELECTRONIC MOTOR MOUNTS FAIL, CAUSING CASCADING FAILURE OF IDLE AIR CONTROL AND DESTROYING ECU. ALTERNATELY, THE IDLE AIR CONTROL VALVE FAILS AND DESTROYS THE ECU WHICH IN TURN DESTROYS THE ELECTRONIC MOTOR MOUNT CIRCUIT WHICH RESIDES ADJACENT TO THE IACV CIRCUIT ON THE ECU MAIN BOARD. THE RESULTING SHORT CIRCUIT IN EITHER CASE CAUSES ACRID SMOKE TO ENTER THE PASSENGER CABIN OF THE CAR AND CAUSES THE ENGINE TO REV WILDLY WHICH, IF NOT, ACCOUNTED FOR, COULD CAUSE AND AN UNSAFE SURGE FORWARD IF STOPPED. BY EMPIRICAL INTERNET RESEARCH AND MORE IMPORTANTLY - FROM DISCUSSIONS WITH THE DEALER SERVICE TECHNICIAN, THIS IS A PROBLEM EXPERIENCED BY SEVERAL DRIVERS/OWNERS OF THE 2001 INFINITI I30, AND 2001 NISSAN MAXIMA WHICH ARE "SISTER" CARS. THIS REPAIR IS VERY COSTLY REQUIRING A NEW ECU, IACV AND ELECTRONIC ENGINE MOUNTS PLUS THE COST OF REPROGRAMMING THE CARS IDLE LEARNING CURVE - TYPICALLY...