I fouled up the timing on my 1990 Subaru Legacy Wagon. Tried resetting it to the factory specs but it still wont start.

You can get guide from many sites.. i know few
error codes/ fault codes, wiring diagrams, schematic diagrams, torque specs, engine info, switches functioning, assemble, disassembly, complete refurbish, repair, installation every single t hing is covered
within seconds u can get the access and it's totally illustrative complete

Reset the fuel pump emergy shut off.

I've had a few vehicles with these autobelts and have been through this. Most manufacturers provide and access panel that will allow you to release the belt manually. Once released some can be reset with precedures as simple as unplugging the battery, waiting 5 to 15 minutes and connecting it back up.

Others your stuck with only being able to leave the connector in the rear IN USE location and having to manually fasten the belt.

If you have an owners manual, it should be listed in the first few pages... Otherwise, if you visit your local library, they will allow you to copy the pages with instructions from their Chiltons or Haynes refference manuals...


Hope this helps

Good Luck and Happy Motoring

Respectfully

You could have gas fouled plugs. Even if they are new , they can gas foul in a short time. The only other thing would be the timing is off.

You may have a broken timing belt.

CLICK on the following LINK. It has the Belt Diagrams you will need.

If you would: Before Clicking: Let me know if this helped you, or if you have any additional information or questions. Feel Free to contact me at FixYa.com

The Timing Belt Marks for the Impreza Wagon and the Legacy Wagon will be the equal of the sportswagon au82motor you have.
http://www.2carpros.com/car_repair_information/year/1993/make/subaru/model/impreza/1993_subaru_impreza_timing_belt_diagram_marks.htm

http://www.2carpros.com/car_repair_information/year/1993/make/subaru/model/legacy/1993_subaru_legacy_timing_belt_diagram_marks.htm

I think factory spec is 60,000 and if you go more than 100,000 you can expect a failure...
Hope this helps...;-)

your timeing marks are on the block rite abouve the cams on either side and on the block in the middle but line the center mark on the teeth there is a mark not the arrow the arrow is where tdc is the mark is on teeth good luck.

timing belt broke most likley

I hate to tell you this but the guy isn't returning your calls because the head gasket is blown and he probably knew it.
As for the 1990... have you checked the water pump for leaks? (front/ driver's side on the bottom of the engine) My guess is that it's faulty and unfortunately, it's behind the timing belt.
Both of these repairs will be a pretty penny.
Good luck!