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1999 7.3 pcm flash

911 views 3 replies 2 participants last post by  sbluke55 
#1 ·
Does every pcm need to be flashed before onstalled
i bought a used pcm from a 2000 does it need to be flashed or can i plug it im and be ok
 
#2 ·
It shouldn't need flashed but you need to know the pcm codes. It says right on it.
What truck did it come out of and what's it going into? Like are they both automatics?
 
#4 ·
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