WHILE I WAS DRIVING ON THE ON-RAMP TO A HIGHWAY MY CAR HIT A BUMP AND LOST CONTROL AND I STARTED SLIDING. THANKFULLY THERE HAPPENED TO BE NO ONE COMING. I NOTICED THAT WHEN MY VAN STOPPED HALFWAY IN A DITCH AND HALFWAY ON THE LEFT LANE I WENT TO MOVE MY VEHICLE IT WOULDN'T MOVE SO I THEN NOTICED IT WAS OFF BUT STILL IN DRIVE AND THE KEY WAS STILL ON. SO I PUT IT IN PARK AND SHUT IT OFF THEN TURNED IT BACK ON THEN WAS ABLE TO PROCEED DRIVING BUT SINCE THEN MY ESP/BAS, AND TRACTION CONTROL LIGHT HAVE BEEN ON. AFTER HAVING THAT HAPPENED I HAD THE RECALL ON MY VAN FIXED. WELL THE LIGHTS ARE STILL THERE AND NOW THE DRIVING IS WORSE. I CANT CONTROL MY STEERING AND THEY SAY IT IS MY STEERING ANGLE SENSOR. THEY ALSO SAY MY CATALYTIC CONVERTER NEEDS FIXED AND A PCM FLASH. WHICH I DON'T UNDERSTAND HOW ALL THESE PROBLEMS STARTED SINCE MY IGNITION UNWILLINGLY SHUT OFF. I AM THINKING THAT CAUSED A POWER SURGE, AND NOW ITS GOING TO COST ME $2000 TO FIX IT IF NOT MORE. MY PROBLEMS NOW ARE: 1) MISFIRE IN CYLINDER 4 2) ROUGH IDLE 3) ACCELERATING SLOWLY WHILE RPM'S ARE ABOVE 3000 4) STUMBLING WHILE DRIVING (SHAKES OR VIBRATES REALLY BAD WHILE IN DRIVE/ OR PUTTERS) 5) ESP/BAS, TRACTION CONTROL, AND CHECK ENGINE LIGHT ILLUMINATED ON DASH 6) STEERING WHEEL SHAKES FROM LEFT TO RIGHT ON ITS OWN 7) LOUD ENGINE NOISE 8) MOTOR SHAKES 9) ABS READER SAYS TO REPLACE STEERING ANGLE SENSOR (CLOCKSPRING) 10) THERE IS MORE I JUST CANNOT THINK OF IT RIGHT NOW. THIS IS CURRENTLY WHAT I HAVE FIXED I