Need Help Fuel Injection GM 3800, 2000 Bonneville SLE

[slanej]

Hey all.

I found out I have a vacuum leak on my intake manifold gasket the other day, so I'm going to replace it this weekend. While I'm at it, I decided to clean my injectors and pretty much everything else that is warranted at the same time. I need some parts first so I thought I'd ask "yinz all" for some advice.

First, I'm gonna need some fuel tubing to construct my FI cleaning rig. What should be the inside diameter of the tubing to connect to the injector base?

Also, I want to get the correct O-Ring kit for replacement. Are the top/bottom O-Rings on the injectors the same size? Fel-Pro or Dorman?

(yeah, cheapo. I know. But I've got 138K miles on my baby. I'm not ready to issue a DNR order just yet. Likewise, there's no medicaid for her.)

And finally, what the hell can I do to get the rubber boot from the air filter assembly off of the throttle body without damaging anything? That Mother is stuck on tighter than a leather dress worn by Emily Ratjakowski.

Any responses are appreciated.

[95naSTA]

That might be the first time I've seen yinz on a car forum.

Why not use your fuel rail, or a spare rail if your goal is to send something through the injectiors to clean them?

Use 9v to pulse the injectors vice 12v since the injectors are pwm, they're never meant to see a full 12v.

If rotating the TB boot doesn't break tension, spray some MAF cleaner or something MAF safe at the connection and work it around.