Ok so i need some positive identification on a sensor and where the vacuum lines go.
Above the throttle body ( not bolted on it ) on a stock 94-01 gsr manifold is a sensor ( 2 wire ) that has a 2 vacuum lines going to it. the lower vacuum line goes to the plenum.... the upper vacuum line goes to a little plastic hat type thing, that on my engine is disconnected. can somene tell me where this hat/ vacuum line goes... and what sensor this is??


now second, on the thermostat housing, theres 2 coolant lines coming off of it. the big line goes into the intake manifold, but where does that smaller line go into??


please someone take 3 minutes to run outside and look at ur engine to help me out!

 

Evap purge solenoid, one vacuum line goes to the intake manifold, the other one goes to the charcoal canister on the firewall.

I haven't got a B-series engine here to look at but I suspect that line either goes to the IACV or the fast idle thermo valve.

 

The larger hose on the thermostat housing is the bypass hose that connects to a large port on the intake manifold flange (#9 in the diagram). The smaller hose #7 connects to the hardline that is coupled with your intake breather pipe, and then connects via hose #14 to a port near the upper radiator hose connection near the head.



And here's a pic of my OBD1 throttle body:

 

awesome lol that answered everything perfectly. much thanks to both of you for your help!