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Hey doing my 2nd trans swap. Dont kmow original trans code. However, the bad trans is TZ1A2ZJEAA-WY. I THINK IT CAME OUT OF A 98 GT. NEW ONE ALSO A GT I THINK. TZ102Z2DCA-KE. Its a outback body. Thanks

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The trans code you posted is the same as what I took out of my 99 legacy GT, you cannot use any transmission older than the 99 model year. They are electronically incompatible. I'm not the best at deciphering the auto transmission codes, but I believe the one you have as a replacement is the wrong gear ratio, and also a phase 1 trans which won't work for you.

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yeah, you'll be wasting your time trying to put that 98 trans in.

 

You're looking for 1999-04 Outback, Forester or Impreza RS automatics most likely as they will be same phase and likely same final drive ratio. You can use Legacy and Impreza phase IIs so long as you also get the rear differential to match and swap that in.

 

Get the final drive for your trans (probably 4.44) and make sure whatever trans you get to replace it is a match by checking its code before you purchase. There are more of these generations showing up in pick n pulls lately. Use row52.com to find a good donor in the self service network.

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Thanks for the fast replies. I'm thinking that my 1999 is more like a 1998 outback. phase 1. Im just learning about phase1 and phase 2. I understand that external trans filter is phase 2. I pulled moter and trans out of a donor. Should have keep my original trans. however, the TZ102Z2DCA (97-98 Legacy GT) electronics fit perfect. I know that 99 was a change over year. I think im living in the past. I found lots of trans code info on the TZ102Z2DCA (97-98 Legacy GT). and not so much on the TZ1A2ZJEAA They look very similar. As for the final gear. 4.44 was used on most outbacks? and GT's? In the past i have jacked up the back end of a 4 runner and counted wheel rotations to get rear diff gearing. Does anyone know if that trick works on subaru?

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All 99s had phase 2 transmissions, 99 Legacy Outback and GT still had phase 1 engine electronics though so you may be getting confused there. Been dealing with subarus for 18 years and I've never seen an exception to that. The wiring may plug up but it will not function correctly. The easiest way to tell what phase the transmission is would be to count the motor to transmission bolt holes, 8 is phase 2 and 4 is phase 1. There are also several cases of a phase 2 transmission not having the spin on filter, some markets go slight variations.

Edited by 86BRATMAN
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There are 3 speed sensors on phase 2 transmissions, all on the left side of it and they are integrated into the transmission harness. Whereas there is one on phase 1, on the right side by the differential, and it plugs into the body harness.

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Yep I stand corrected. sorry to question. I guess it was hopefull thinking. Looking closer last night proved that it aint gonna work. The replacement trans TZ102Z2DCA (97-98 Legacy GT) has only one speed sensor. My current bad trans has the three sensors and more wires coming out of it. Plug looks simmilar but not so easy to see. So i guess that trans will go back on craigslist. Thanks for saving me a ton of head scratching and flustration. really really big thanks

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What exactly is your issue with the current transmission? Delayed engagement into drive and reverse is very common in the 99/00 automatic transmissions, and it can be fixed by a mechanically competent person with a few seals from the dealership for not a lot of money.

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it started out on a wet 3 hour drive. I went through a clover leaf freeway entrance, about a n hour into drive. in the turn motor rpms went high and car slowed. as i intered freeway things returned to normal. driving at freeway speeds couldnt tell there was a problem. exit of freeway into city and car was really slow to move. rpms seemed normal. slowly parked it as it was barely moving and it smelled hot. not an engine oil smell but i figured trans oil. later drove it 20 min. home and it was impossible to park it. the trans oil looks clean and not burnt on inspection. I'm guessing it the gear box but assume it easier to replace whole thing. thanks again

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