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Just a thought here, but does the computer either look for 4 or 2 or does it check to see if there is some sort of connection and if they exist for 4 it uses 4, but if only two does it use two?
Im not sure what the hell you just asked lol, but there is 2 types of PCMS Federal and Cali and part numbers, each computer reads what it was built for.
o2 question
