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+--- Thread: vacuum on m pump (/showthread.php?tid=6368)
vacuum on m pump - gary andrews - 03-22-2015
what do you use to control vacuum stop on m pump
RE: vacuum on m pump - Petar - 03-22-2015
(03-22-2015, 11:59 AM)gary andrews what do you use to control vacuum stop on m pump
Any 2 way vacuum solenoid valve.Used on many cars to control EGR. Connect it so the vacuum line that goes to the pump is opened to atmosphere when the solenoid is powered and when the solenoid is unpowered the line that goes into the pump is connected to the main vacuum supply line.
![[Image: 2955739.jpg]](http://product-images.highwire.com/1911383/2955739.jpg)
RE: vacuum on m pump - gary andrews - 03-23-2015
thanks Petar
RE: vacuum on m pump - gary andrews - 04-04-2015
put one of those valves on and works the first time them when i go to start it again it seems like the vacuum stops the pump from shutting ,am i missing some thing here
RE: vacuum on m pump - Petar - 04-04-2015
(04-04-2015, 01:58 PM)gary andrews put one of those valves on and works the first time them when i go to start it again it seems like the vacuum stops the pump from shutting ,am i missing some thing here
Here's how i plumbed mine:
![[Image: 2955739_zpsicf1onhe.jpg]](http://i1353.photobucket.com/albums/q663/Petar/2955739_zpsicf1onhe.jpg)
It's mounted on my w123 and works flawlesly. Couldn't take pictures because it was too dark.
Try trial and error, only 6 possible ways to plumb it, in 3 of those it won't run at all. You ought to get it right sometime
