Alaskanbadfish

I've looked online and can't find what I seek. I need a diagram without egr, or air system, vented opti. Only one I know I have right is the small line to fuel pressure regulator. Any help would be great!

myltwon

iTrader: (1)

If you still have the stock fan shroud on there it should have a vacuum diagram

shbox

If he had a signature, people would know that this is a 93 LT1 transplant in a Jeep.

Any stock diagram you find, you can follow. The items you don't have get the vacuum source port capped off.

Your PCV valve hose is u-shaped, unlike this example:

myltwon

iTrader: (1)

Ah, I'm on mobile so I wouldn't have seen it anyways

Alaskanbadfish

So my pcv doesn't go up around to the throttle body, but just a port next to the pcv? Would the bottom port on the throttle body just be capped then? I'll work on that signature. Thanks!

Supercharged111

iTrader: (1)

The u shaped hose only applies if that's a 93 intake. Otherwise there's a longer piece the later ones use that runs toward the front. Wouldn't you know it, all my junk is either in the trailer or a friend's garage. The 2 bottom ports on the throttle body are for coolant. You can just leave them open if you want, I straight up yanked mine out. How about a couple pics of this thing?

shbox

The PCV vacuum port on the front of that diagram is actually on the intake and not the TB. Your 93 intake has no port there (or it is plugged), because the PCV used a port on the side of the intake next to the PCV valve (that's why you have the u-shaped hose).

http://shbox.com/1/pcv_pipe.jpg

Your PCV in upper part of this diagram:
http://www.wholesalegmpartsonline.co...05MF03-076.JPG

myltwon

iTrader: (1)

94s or atleast the early ones, also had the u shaped hose.

lt1-xjs

FWIW the only functional port you need is the fuel pressure regulator,everything else can be capped off. I do have a line for my hvac and cruise only because I wanted them to work. I have a pcv valve in my pass valve cover hooked to the throttle body. It also has the U hose.

shbox

I didn't mention it since he has a 93.

Alaskanbadfish

Thank you. I'll fab up a u shaped hose tomorrow.

On the passenger side of the TB there is a strong vacuum on the bottom, this is capped as well I assume?

Supercharged111

iTrader: (1)

Yeah. The upper goes to the passenger valve cover, that's the other half of your PCV system.

I misread one of his posts in a way that implied he may have a later intake. Having re-read I don't think that's the case.

Alaskanbadfish

Right, top port goes to pass valve cover, bottom port has strong vacuum and is just capped off right?

Supercharged111

iTrader: (1)

Yeah, at least that's how I have mine. I'm guessing it's for my non-existent charcoal canister.

shbox

Might be better to buy the correct, pre-bent hose if it is still available. Otherwise, you might end up with a kinked one that does not work.

Yes, cap the port on the TB that would be for EVAP.

myltwon

iTrader: (1)

meant to quote supercharged111 in that reply