RECENTLY BOUGHT CAR. WIRING HARNESS HAD ALREADY BEEN REPLACED, BUT COMPUTER HAS NOT ACTED CORRECTLY SINCE THE WIRING SHORTED OUT DUE TO FAULTY INSULATION. THROWING FAULTS AND NO IDLE. SURGES FORWARD OR BACKWARDS ON ITS OWN. WHILE BACKING IT OUT OF GARAGE, IT SURGED BACKWARDS SO FAST THE BRAKES WOULD NOT HOLD. HIT TRACTOR PARKED IN DRIVEWAY BEFORE GETTING IT STOPPED. BROKE REAR BUMPER COVER. I HAVE OLDER VEHICLES (1974 CHEVY) (1990 CHEVY PICKUP) WITH ABSOLUTELY NO WIRING PROBLEMS. NOW I HAVE A REALLY NICE 1994 E320 THAT IS JUNK BECAUSE I CAN'T AFFORD THE $12 - $1500 TO REPAIR IT. I CAN NOT DRIVE IT UNTIL I CAN HAVE IT REPAIRED. GOOD THING I WASN'T IN TRAFFIC BEHIND A COP WHEN IT DECIDED TO SURGE FORWARD ON IT'S OWN, OR I WOULD BE WRITING THIS FROM INSIDE A JAIL CELL. *TR