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Glenn-ho
04-13-2011, 07:06 PM
Does anyone know what PCM's will interchange on a 03 MM 300A?
My PCM has 3W3A-12A650-BA (BMDO).

3U7A-12A650-MAMR
3W3A-12A650-AC
musclemerc
04-13-2011, 07:14 PM
ANY 03 PCM will work. Same thing is true with the 04's
Glenn-ho
04-13-2011, 07:30 PM
Will it have to be reflashed?
4play
04-13-2011, 08:01 PM
I thought the 04's were different because of the duel knock sensors?
justbob
04-13-2011, 08:11 PM
I thought the 04's were different because of the duel knock sensors?
Like said above.

Any 03 will work in any 03.

Any 04 will work in any 04.
musclemerc
04-13-2011, 08:57 PM
Will it have to be reflashed?

No, it wont
RoyLPita
04-14-2011, 04:27 AM
Will it have to be reflashed?

You'll have to program your keys to it.

BTW, I would keep the BMD0 PCM. It is the most common of all of the MM PCMs. In Fact, I went with the BMD0 PCM for ease of getting a tune.
Bradley G
04-14-2011, 05:01 AM
BMDO has a few more options , It can operate in a 2004 if you know the right peeps.