swapped a b18c obd1 into a 95 si hatch. This extra plug was on the gsr harness, is it nesessary? is a 3 wire plug. also in the second picture, where the red capped off vacuum tube is, is this for the charcoal canister?

 

i have that plug too, i think its the same one, but i have a plug that just chills there, lol right by the shock tower

 

is your swap a obd2 gsr

 

mine is, that prolly why, with obd2 harness's ull have some left over plugs

 

engine has a 95 head stamp, and a td44u distributor, so is that obd1?

 

need answers fast! what is the red plug for?

 

how come u dont use the si harness

 

after attempting to start the car after the swap, it finally fired right up and starts every time now. Gettting a little bit of bogging at low rpms, it was hard to start 1 time and sorta sputtering whilte starting. Does this sound like foulded plugs? Cam timing is perfect..

 

you have a speed sensor plugged in by chance?

as for that red sensor on the manifold, beats the hell out of me. looks like somebody jb welded that there.

 

looks to be the IACV plug