I pulled my LS swap from a 91 teg with intentions of keeping it OBD-0 so I pulled everything from it that was attached to the engine just in case. I went ODB-1 in the end and now I have no clue what these things are.

they were on the firewall and fed into the vacuum ports on the intake manifold.

 

I know the square one is the map sensor.
the other two are purge solenoid valves but don't know how they work or
what they do sorry don't have my repair manual.

 

map sensor and purge solenoids. i really cant believe you just cut them off. this would be a good time to splice the map connector back on.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KraZEtEggIE &raquo;</TD></TR><TR><TD CLASS="quote">map sensor and purge solenoids. i really cant believe you just cut them off. this would be a good time to splice the map connector back on.</TD></TR></TABLE>

well yeah I did.

had limited time to the car...had to get what I could...and splicing didnt bother me.

I havent cranked the car yet which is why I decided to ask now before codes flew.

 

ONE IS THE MAP SENSOR
SECOND IS THE PURGE CONTROL SOLENOID VALVE
THIRD IS THE PRESSURE REGULATOR CUT-OFF SOLENOID VALVE