Car idling and jerking when I come to a stop

SOURCE: The check engine light is on and the car is

IDLE SPEED HIGH COULD BE IDLE AIR CONTROL VALVE HAS FAILED OR IDLE AIR INLET PASSAGES OR THROTTLE BORE IS DIRTY OR FULL OF DEPOSITS.THROTTLE PLATE THROTTLE SHAFT OR LINKAGE IS DAMAGED OR STICKING.MASS AIR FLOW SENSOR DIRTY OR SKEWED. YOU COULD HAVE INTAKE LEAK LOOK FOR LEAKING VACUUM HOSES OR LEAKING PCV VALVE.TO SAVE TIME AND MONEY HAVE VECHICLE CODE SCAN.YOUR THROTTLE BODY DIRTY NEED CLEANING.CARBON BUILD UP WILL CAUSE THROTTLE PLATE SHAFT LINKAGES TO STICK. CODE SCAN VECHICLE FIRST SEE IF IDLE AIR CONTROL VALVE FAULTY. IF NOT PROBABLY NEED TO CLEAN THROTTLE BODY WITH CARBURETOR THROTTLE BODY CLEANER DONT GET THE CLEANER ON THE IDLE AIR CONTROL OR ANY ELECTRICAL PARTS LIKE TPS SENSOR IT WILL DAMAGE PARTS, JUST SPRAY CARBURETOR CLEANER INSIDE THROTTLE BORE OPEN THROTTLE PLATE SPRAY CARB CLEANER INSIDE THROTTLE BODY BORES AND AROUND THROTTLE PLATE REMOVE CARBON BUILD UP.