Where Have All The A9L's Gone?

[Mach 1]

They dont have different part numbers for california ones? How did you come to this conclusion again?

In 1990, they went standard across the board, I double checked my source.

I dont have my spare EEC IV in front of me (its buried in the attic), but as far as I remember,
The code isnt in or part of the part number, correct?

The part number is separate fromt he code I thought.