Need a Secondary Vacuum Diagram fo a 91'

[Ccmano]

Can anybody shoot me a vacuum diagram (under plenum) for a 91'? I only have one for a 90', 1991's have that looped line. Can't seem to find one on-line only photo's.
Email is ccmano54@gmail.com
Thanks
H

Hans, the only two different things are the EVAP purge and vacuum lines.

[WB9MCW]

http://www.corvetteactioncenter.com/...cuum+Diagnosis

[Ccmano]

Thanks Bryan, I'm aware of that one. Unfortunately it's a 90' not a 91'.
H

[Ccmano]

Never mind I found one! I forgot there's one in the engine supplement book.

For those of you not aware of the difference here are the two side by side. 91'+ on top, 90' on the bottom.
H

[WB9MCW]

one extra part is that the difference?

do you have a 1992? or is it the same as the 91?

Originally Posted by Dynomite

It appears the purge solenoid (item 18) and associated vacuum line is the only difference between 90 and 91 as Jeffvette described. I would like to know what the purge solenoid does?

EVAP. Basically gas vapors.

[Ccmano]

Originally Posted by WB9MCW

one extra part is that the difference?

do you have a 1992? or is it the same as the 91?

91' and up are all the same I believe. The difference is in the additional Evap solinoid and lines, and also the vacuum lines to and from the evaporation canister (#12 on the diagrams).
H

[Jagdpanzer]

http://zr1netregistry.com/gifs/vacuum.jpg

[Dynomite]

Originally Posted by Jeffvette

Hans, the only two different things are the EVAP purge and vacuum lines.

I assume the EVAP purge is the gadget bolted down with the two 8mm bolts on front of the coil frame? At the moment, I cannot find the electrical plug that plugs into the North end of that EVAP purge (my 91' is facing west)

Oh...ya....I rotated each vacuum actuator for secondary so the shaft is not at such an angle It appears they were installed 180 deg off.

What I really need is a nice under plenum labeled picture of electrical connections as well as vacuum connections for a 91' like WB9MCW provided in http://www.corvetteactioncenter.com/...cuum+Diagnosis which appears to be other than a 91'