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Helping when I can
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I made this to post in another section and figured more people may want it.
This would be handy if you are keeping your car factory stock for emissions or whatever and need to replace that dry, brittle, and broken hard line harness.

If you find it helpful, just say "thanks".:)
I am not an artist:p

THANKS TO 4 L-bodies...
Wastegate Solenoid...
The vacuum-pressure source must be on the top barb and the wastegate control on the side barb.



IMG_NEW.jpg SOLENOIDS- Quad Solenoids 2.jpg

Also From 4 L-bodies...
The 86-87 GLHS doesn't use the purge solenoid (pneumatically) but it is electrically connected. It uses the EGR solenoid instead. The 87 GLHS doesn't have EGR at all, but the 86 GLHS did use EGR. Your diagram as numbered in yellow, would be correct for a log manifold vehicle. The picture shows the purge solenoid not pneumatically connected, so it would be plumbed correctly for a GLHS. More than likely something intercooled without EGR. Clear as mud right?
 
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Helping when I can
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1,326 Posts
Discussion Starter #2
Remember to grab the "YELLOW" orifice from the vac harness before you pitch it.
It is the orifice listed in the line to the wastegate can.

 
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