Steve,
Greetings. I just got through trouble shooting my 95 legacy L using a
ODB-II to RS232 converter and a old TRS-80 model 100 computer, believe
it or not. The converter is from
www.scantool.net for under $100.
I connected it to the computer and just used the computer as a dumb
terminal to querry the ODB-II system on my car. No special software,
although scantool.net does provide software for windoze (I'm a mac guy!)
After about 15 minutes of "playing", I was able to decode the results
and determine the codes were related to the pressure sensor (see my post
Subaru pressure sensor).
I tested the pressure sensor with a voltmeter as directed by my
Haynes manual, and sure enough, the pressure sensor is malfunctioning.
The 95 legacy seemed to support at least the basic ODB-II
stuff...reading codes, reporting sensor data. I was able to read the
temperature sensor, engine rpm, vehicle speed, etc. Just playing around
after I accomplished reading the trouble codes.
Ok, so how about some pointers as to where I can get a pressure
sensor? I got to believe that these things are way over priced. The
dealer price is about $250 new. Even the used prices I've seen are too
expensive.
I've hacked mine apart and done some research on the web, I think
these are semiconductor pressure transducers that work using the
peizoresitive effect. How much can they be worth? I doubt Subaru pays
250 bucks a pop!
...Good luck, Dave