I know it as the PCM (Power Control Module?), its located behind the kick panel on the passenger side of the car. Controls the ignition, fuel injectors, etc...
Not sure if its the same as the ECU/ECM myself actually... been doing some searching on that, but no answer
EDIT: OK, just found some info that looks like it is the ECU,
tah-may-toe, tah-mah-toe
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