ANSWERS: 1
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Any 2002 is OBDII, so it has a "brain". However, it is a pretty rugged box too so it is unlikely that the ECU is the cause of your problems. It is a solid state device whereas your engine and the rest of the car are not; they have components that can be shaken, bent, misaligned, etcetera. Most ECUs are capable of being reflashed, but I HIGHLY HIGHLY HIGHLY doubt that that is the cause of your problems.
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