I am going to replace my injectors on my 91 3.1L V6 and I looked into the service manual and there its written that after changing the injectors you need to:

1. Restore battery power
2. Connect GM TECH I scan tool
3. Select "IAC System", then select "Idle Learn"...

I don't have any kind of tech scan tool !!!

DO I REALLY NEED TO DO ALL THIS AFTER REPLACING FUEL INJECTORS ?

Anyone of you ever did this way and what should I do after I have done the replacement ?

If you disconnect the battery then the idle learn is required. More so if your car has an automatic. But fear not!, you can do the idle learn without a GM scan tool.

Here is a link to the original post along with a follow up post that has additional information:

https://www.thirdgen.org/forums/v6/1...procedure.html
https://www.thirdgen.org/forums/v6/1...dle-learn.html

RBob.

I have a 5-speed tranny and actually I never knew that you have to do ILP after every time you connect the battery cable and so far luckily I have not had any idle problems.

Can I just leave the car for idle for about 5min after reconnecting the battery or should I go with the procedure you described in your original posts ?

I don't have an A/C nor rear view defroster and what is meaning of CHUCK tires ?

Should be chock tires, IOW, block them to prevent the car from moving.

For a stick, just let it idle for 5 minutes or so.

RBob.