Hello, I am a newbie. I own a replica 1955 Porsche 356 powered by a mid engine 2001 2.5 Forester and 4EAT. Car runs great, and shifts fine while in drive, but I can not manually downshift to any lower gears. Whatever lower gear the selector is placed in the car acts as if in drive. This problem was intermittent at first, now happens all the time. I have replaced the inhibiter switch, drained and replaced both filters, new fluid, checked all solenoids, and shifting linkage. I even tried different TCU and ECU. Car runs great in drive, shifts up and down as it should, but still I am not able to manually use any lower gear.
I have contacted several local shops but the problem can not be pin pointed. At first the only codes pulled pointed to the inhibiter switch, but now I can not pull any trouble codes at all. Anybody out there recognize this problem?