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Old 11-11-2015   #13
Dynomite
 
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Join Date: Aug 2009
Location: South Dakota/California
Posts: 3,816
Default Re: Vacuum pump confusion

Quote:
Originally Posted by We Gone View Post
Makes me wounder what it would take to add an operating bulb to the dic of the 91-up???, Could you tie it to the switch light or even to come on when the sec are open...?
You guys are missing out on the best interior feature that exists on the 1990s



Quote:
Originally Posted by MuRCieLaGo View Post
Hi Dynomite,

I remove all these, plus I install a chip from Marc Haibeck, and that's it? And when I'll be done, I simply block the vacuum nipples from the plenum?
What will happen performance-wise if I remove the system? There will be no more difference between "Normal" mode and "Full" mode?
I own a '91.
Thanks!
You do not need to block the passenger side vacuum nipples from/to the Plenum (you block the Drivers side vacuum nipple between the Plenum Runners only). That vacuum nipple on the passenger side of Plenum is Cruise control and HVAC which you leave in place.

Your tiny green light will stay on all the time by the Full power switch (Haibeck Chip secondaries removed) and you are ALWAYS on FULL ENGINE POWER Mode.

See Item #2 Vacuum Systems 90' and 91' (Secondary and Cruize/HVAC)

This is a 1991 with Plenum Vacuum Drivers Side Blocked


Last edited by Dynomite; 11-11-2015 at 03:24 PM.
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