T number reveals the year: T95 for '95.
T96 for '96 and so on.

I like that theory, I looked into that exact problem few years ago when my car was having surging idle problems making the car undriveable (the problem was the ETM, and I was in extreme denial about it because the ETM was new, lol). I ended up plugging a small gap in the bottom of the flange where t...