5.7L TBI vacuum diagrams anyone?

[gen1blazer]

Oh ya, it's a 91' throttle body injection 350 out of a ck1500. The motor and trans have been transplanted into a 72' blazer, and it is running a little rough (thinking maybe vacuum leak). I am hoping someone has a copy or could make a copy of this particular diagram and e-mail it to me, thanks......

[charlo]

There is not much to the vacuum diagram for my 89' 454 tbi.
1 from TB to pcv
1 from tb to egr solonoid
1 from tb to purge/canister solonoid
I think that is all there is to it.

Charlo

[Lil'John]

Pulled from an 88 Camaro TBI emmisions sticker:
The ports on the TBI unit are labeled with leters which I will reference here.
back of TBI unit:
port F goes to the MAP

front of TBI unit:
port J goes to EGR
port C goes to PCV
port A goes to charcoal
port B goes to aircleaner

[charlo]

Oh yeah I forgot about map. I dont have anything going to air cleaner though :confused:

Charlo

[Lil'John]

Originally posted by charlo
Oh yeah I forgot about map. I dont have anything going to air cleaner though :confused:

Charlo

I think the air cleaner line is for the heat riser flap :)

[gen1blazer]

Thankyou for the help, I think I have it figured out now. Half of my problem was timing, my distributor was a tooth off for starters, and now that it is running better I find that the alt is not charging. Still working the list one item at a time.

[pcelle]

conect the j port form yopur alt
to a direct + trough a signal light

thats

alt --------light--------+bat