2003 INFINITI Q45 Electronic Stability Control Esc Problems

BOUGHT 2003 Q 45 IN SPRING 2007, STILL UNDER WARRANTY. JUNE 2009 AT 79,000 MILES THE ENGINE WAS REPLACED (UNDER WARRANTY). 6/30/09, 80,081 MILES CAR PROBLEM WITH NO ACCELERATION AND SERVICE ENGINE AND CRUISE CONTROL LIGHT COMING ON. PROBLEM DIDN'T REOCCUR UNTIL JUNE 2012 WHEN ENGINE SUDDENLY CUT OFF WHILE DRIVING. WOULD RESTART IN NEUTRAL BUT IN A WEEK OR SO IT DID IT AGAIN ON THE INTERSTATE AT ABOUT 55. FORTUNATELY WAS IN RIGHT LANE AND COULD GET TO EMERGENCY LANE BEFORE SOMEONE RAN INTO ME. CAR RESTARTED. CONTINUED LIKE THIS UNTIL 6/29/12 WHEN REPAIRED, ONLY IT CONTINUED TO STOP AND THE CRUISE CONTROL/TRACTION LIGHTS WOULD COME ON AND CAR WOULD SUDDENLY STOP AND THEN SURGE FORWARD. 8/11/12 SERVICED FOR SAME PROBLEM. 8/14/12 SAME THING, CAR STOPPED THEN SURGED, THEN THE ENGINE CUT OFF AND LOST STEERING/BRAKES. INFINITI SERVICE AGAIN, THIS TIME INSTALLING NEW ELECTRONIC CONTROL MODULE ($ 1600)....

MY 2003 INFINITI Q45 REPEATEDLY STALLS [SO FAR, 15+ TIMES] AND OFTEN WILL NOT RESTART [10+ TIMES]. WITH MY FAMILY AND ME IN THE CAR, THE STALLING OF THE CAR PUTS US REPEATEDLY IN JEOPARDY OF A REAR-END COLLISION OR VANDALISM OR BODILY INJURY IN DANGEROUS AREAS. THE CAR IS PROPERLY MAINTAINED ON ITS SERVICE SCHEDULE. IT TOOK MY MECHANIC A WEEK AT A COST OF $90 TO CONFIRM THAT THE PROBLEM IS THE ENGINE CONTROL MODULE [ECM], THE 'BRAIN' OF THE CAR WHICH CONTROLS OTHER VEHICLE SENSORS, AND THIS WAS CONFIRMED BY THE INFINITI DEALER AT A COST OF $150. THE ECM WAS SENT TO TEXAS FOR RECONDITIONING AND REPROGRAMMING, BUT IS BEING RETURNED BECAUSE THE ECM IS IRREPARABLE. THE COST TO BUY AND REPROGRAM A NEW ECM FROM INFINITI, THE ONLY SOURCE, IS $2000 FOR A VEHICLE WITH 100,000+ MILES. BUT A NEW ECM WILL LIKELY HAVE THE...