I just recently finished reassembly on my wrx after installing a td05 20g, and some supporting mods. I didnt touch the transmission at any time during the install and when I fired the car for the first time my transmission developed the following two issues:
1. the A/T oil light flashes non stop, fluid is full and does not smell burnt at all.
2. It will shift 1st, 2nd, then neutral drop 3rd and 4th while in drive unless I let off right before it goes into gear.
The car hasnt been re tuned yet, nor have I driven it more than 10 miles. The only time I drove it was to get it back to my house from my friends shop, never going over 40mph.
Has anybody encountered this before or have any ideas where to start trouble shooting?