Cadillac Repair: fuel injectors, cadillac sedan deville, fuel injector

Question
QUESTION: what is the process of replacing a fuel injector how much time and what all do you have to do.

ANSWER: I need to know the YEAR, MODEL and ENGINE SIZE of the vehicle.



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QUESTION: the car is a 1991 cadillac sedan deville 4.9 v8 fi.

Answer
If you are mechanicaly inclined or know of someone who is, You will need a DIGITAL MULTIMETER, Simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.