Where is the obd connector on a 1995 subaru impreza turbo

Usually there is a vacuumed diagram under hood

head gasket is blown

Hi turbo or non turbo models?

check your turbo
turbos tent to leak from the seals also its always good to buy an oil catch can

very. the manual box is quite tough, as are most subaru parts. I have had a lot of imprezas and a legacy and they are quite bullet-proof except for a fuel starvation fault in hard-tuned turbo models but that due to fuel rail design and too much boost ;)

Yes it will work and is a common swap. You will need the computer. Good luck and have a great day.

waste gate(valve on turbo with vacuum hose)or vac leak,or maybe computer issue,get it looked at,or you could blow something !!!

check vacuum hose leaks

your spelling is horrid.   I think your boost control valve or pop-it valve is defective.  Also try a basic tune up with plugs and filters. 

i changed the water pump never lost water again