Is it necessary to clear the codes in the cpu before rechecking for them, after repairs? If so, what is the proper procedures for clearing the codes? Do I need to run the car for a period of time before re checking the codes?
Thanks

 

If you have done the recommended repairs per the codes , then disconnect the battery for about 30 mins, usually 5 or 10 is good but just to be sure I always disconnect for 30 mins.

After you hook it back up the ecu should be clear of any codes, just drive it normally for a day and recheck for any reoccurring codes , unless the cel comes on right away after starting up .

 

Right on. Thanks