setting idle speed on '88GT

Philossifer

You obviously haven't worked on many 5.0 mustangs judging by your lack of knowing how many people use this method of setting the idle on 5.0 mustangs. This isn't something I made up,you can do a search on the net and you will find the EXACT same thing I said here that setting the idle on a 86-93 5.0 mustang involves the same steps.You will find the same procedure listed in a chiltons manual.

The only thing that has to be done after the idle is set,is drive the car,allowing the computer to re-learn the new settings.

Instead of reading books,you need to go out and actually work on some cars to get a understanding of how things work.