Legacy777 Posted July 13, 2006 Share Posted July 13, 2006 It's not exactly fun. You need to remove the bottom plastic piece under the dash, and that should give you access to the ECU & TCU. You'll probably have to remove the TCU which is held in with two 10mm nuts to get at the ECU. Quote Link to comment Share on other sites More sharing options...
Richard1296 Posted July 13, 2006 Author Share Posted July 13, 2006 Thats not what I wanted to hear. Had to order a O2 sensor ...won't have it till Monday. Going to take the 90 Legacy to see its mom tomorrow. I will see what my semi-local Subaru service department can tell me about why my AWD does not work I still need to replace the ECU, going salvage yard shopping Saturday looking for one. I asked Blackbart...he didnt have one but said he would see what he could find, so unless I get lucky Saturday everything will be at a stand still. Thanks Very Much to all who have helped me Richard Quote Link to comment Share on other sites More sharing options...
Richard1296 Posted July 14, 2006 Author Share Posted July 14, 2006 Well just got back from the Subaru service department....they tell me my AWD is working fine. They test it on a lift and pull the parking brake . It definitely turns the back wheels against the brake. But last winter it would spin the front tires and the rears didn't seem to be doing anything. They sure didn't spin on ice when the front was spinning then. Other than being $75 lighter I really don't know any more than I did before the visit. Anyone know how to test the AWD and get a definite answer. Richard Quote Link to comment Share on other sites More sharing options...
nipper Posted July 15, 2006 Share Posted July 15, 2006 Well just got back from the Subaru service department....they tell me my AWD is working fine. They test it on a lift and pull the parking brake . It definitely turns the back wheels against the brake. But last winter it would spin the front tires and the rears didn't seem to be doing anything. They sure didn't spin on ice when the front was spinning then. Other than being $75 lighter I really don't know any more than I did before the visit. Anyone know how to test the AWD and get a definite answer. Richard where is the parking brake on a 1990, front or rear? i dont know if you can pull awd function codes of this year anyone or do i have to go read manuals nipper Quote Link to comment Share on other sites More sharing options...
Richard1296 Posted July 15, 2006 Author Share Posted July 15, 2006 where is the parking brake on a 1990, front or rear? i dont know if you can pull awd function codes of this year anyone or do i have to go read manuals nipper I think its on the rear...I can hear it when I pull the handle. At least I hope thats what I hear. But there must be a Subaru "approved" way to test the AWD for function. Richard Quote Link to comment Share on other sites More sharing options...
nipper Posted July 15, 2006 Share Posted July 15, 2006 I think its on the rear...I can hear it when I pull the handle.At least I hope thats what I hear. But there must be a Subaru "approved" way to test the AWD for function. Richard sigh, the dealer has no idea what hes doing SUbarus the front wheels are always connected to the driveline. The rear wheels are the controled wheels. Of course the front wheels will sopin if you raise the parking brake. The dealer was an idiot. He didnt do a damn thing. nipper Quote Link to comment Share on other sites More sharing options...
Richard1296 Posted July 15, 2006 Author Share Posted July 15, 2006 sigh, the dealer has no idea what hes doingSUbarus the front wheels are always connected to the driveline. The rear wheels are the controled wheels. Of course the front wheels will sopin if you raise the parking brake. The dealer was an idiot. He didnt do a damn thing. nipper I meant the testing procedure to say that the rear wheels did turn against the parking brake when it was pulled. The front was spinning all the time. DAMFINO Richard Quote Link to comment Share on other sites More sharing options...
nipper Posted July 15, 2006 Share Posted July 15, 2006 I meant the testing procedure to say that the rear wheels did turn against the parking brake when it was pulled. The front was spinning all the time. DAMFINO Richard lets go back to the very begining. WHy do you feel its not working Quote Link to comment Share on other sites More sharing options...
Richard1296 Posted July 15, 2006 Author Share Posted July 15, 2006 lets go back to the very begining. WHy do you feel its not working Previous owner said last winter it spun the front tires. Rear tires never spun, only moved at a speed equal to what the car moved. I would expect front and rear to spin on ice when trying to make them spin. I bought the car at a price that reflected a non-working AWD. I could not get the reat tires to spin in gravel when I tried last weekend. Only the front would spin. I would expect all wheels to spin at least a little for a brief time. Richard Quote Link to comment Share on other sites More sharing options...
nipper Posted July 15, 2006 Share Posted July 15, 2006 Previous owner said last winter it spun the front tires. Rear tires neverspun, only moved at a speed equal to what the car moved. I would expect front and rear to spin on ice when trying to make them spin. I bought the car at a price that reflected a non-working AWD. I could not get the reat tires to spin in gravel when I tried last weekend. Only the front would spin. I would expect all wheels to spin at least a little for a brief time. Richard not necassarily. Put the FWD fuse in the holder, and see what the difference is nipper Quote Link to comment Share on other sites More sharing options...
Richard1296 Posted July 15, 2006 Author Share Posted July 15, 2006 not necassarily. Put the FWD fuse in the holder, and see what the difference is nipper Yes that kills it working on a lift...it just seems that it should do more with all 4 wheels on a slick surface. Maybe not...This is my first Subaru and only had it a few months. It was garage kept and is as clean as a new car, uses no oil in 4000 miles. If its doing what it should then the last owner (who has had 4 subaru's) outsmarted himself and sold me a bargain. Richard Quote Link to comment Share on other sites More sharing options...
nipper Posted July 15, 2006 Share Posted July 15, 2006 Yes that kills it working on a lift...it just seems that it should domore with all 4 wheels on a slick surface. Maybe not...This is my first Subaru and only had it a few months. It was garage kept and is as clean as a new car, uses no oil in 4000 miles. If its doing what it should then the last owner (who has had 4 subaru's) outsmarted himself and sold me a bargain. Richard no put it in and drive the car on the ground. Floor it on a slick wet, or if it will spin tires on dry durface, do that. next put the fuse in and repeat. nipper Quote Link to comment Share on other sites More sharing options...
Richard1296 Posted July 15, 2006 Author Share Posted July 15, 2006 no put it in and drive the car on the ground. Floor it on a slick wet, or if it will spin tires on dry durface, do that. next put the fuse in and repeat. nipper Ok will try it tomorrow and let you know what happens. Time to call it a night. I get up a 5 am. Thanks Richard Quote Link to comment Share on other sites More sharing options...
JesAkers Posted October 11, 2016 Share Posted October 11, 2016 Richard, how did this all play out for you? What was your final find/discovery/fix?We have a 1990 Legacy, automatic, build date 10/89 as well. We had codes 45 and 22. We got the knock sensor replaced, now we need to address the Atmospheric Pressure Sensor. I am curious if your finds can save us a little time in this process??Thank you much! Quote Link to comment Share on other sites More sharing options...
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