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ECU repalcement

(2001 Saturn SC2)
in Richmond, VA on February 23, 2011
I replaced the ECU and now the car will not start. All the numbers match the old ECU. I put the old one back in and it will start. What may cause thisissue with the new ECU?
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Popular Answer
on February 23, 2011
It is possible that it needs programmed upon installation. You may want to consult a Saturn specialist.

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