If anyone is interested.. I bought a new fuel pump control module since mine fried itself to death and figured since it changed part numbers I wanted to see if they actually changed something. Well looks like they did. Mine is out of a 1990 original part ending in 40P00 The new on has superceeded to a 40P01 Original Equip 1990TT
 New 40P01 part number. 
Looks like an addition of another capacitor and some other changes.

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