There are two vacuum solenoids. One for the evap can purge and one for the EGR valve.
The evap can purge solenoid will have only two connections. From the TBI and to the evap can. (I'd bet this is it but it's hard to tell for sure).
The EGR solenoid will have two connections and a vent. The vent usually has a small cube foam filter stuck on it to keep dirt out of the valve. The little foam filter is about 3/8" square. Sometimes people will block or plug that vent in a mistaken attempt to disable the EGR.
My2%
Last edited by CatFish; November 06th 2021 7:37 pm.