I just dropped in a b18a1 obd1 out of my hatch into a A/T 94 Integra... happened to notice an extra hose nipple coming from the I/M that I guess had a place in my hatch but not for it in the teg, so I just capped it... But the car seems to over heat. Now when I did my B20 swao into my hatch I had a similar problem but the nipple was on the thermostat housing and I tried to plug it like I did the I/M and it over heated a well. So i changed the Thermostat housing from my old ls that didnt have the nipple and all was well. Now I have another 95 Integra I can compare to but it 5spd, anyway the I/M doesnt have that nipple either. Now last I checked where I plugged the nipple it looked like it was expanding. So should I get another I/M that doesnt have the nipple to fix it? or did I do something wrong?