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Vacuum Solenoids

yblocker
in Old Gen.: 80's GL/DL/XT/Loyales...

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'92 Loyale 5 speed ea82.  I just got the car and need to get it smogged, but am chasing some minor idling issues.

There are 2 solenoids on this car related to evap and egr function.  Based on the sticker map under the hood, they appear to be plumbed correctly.

I have replaced the rubber vacuum lines.

My question is how to test the solenoids.

EGR to throttle body base nipple solenoid:  Is this one designed to allow vacuum flow through when energized, or does it block off vacuum when energized?

Same question for the solenoid that is connected between the the evap can and the vacuum reservoir.

Presumably I can test them by supplying 12v.

 

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