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need to know the proper way to reset the computer 1990 4.o areostar and also what is a= brake booster =fuel regulator =is there specailty tools i need please explain how to do these things thanks very much i will post again if something goes wrong
To reset the computer, unhook the negative pole on the battery, pull out the headlamp switch and let it sit for awhile. I've heard all it takes is 10 minutes to reset the computer, however, I believe it takes more time. I usually let them sit over night.