ECU repalcement on 2001 Saturn SC2

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?

by in Richmond, VA on February 23, 2011
1 answer
ANSWER by on February 23, 2011
It is possible that it needs programmed upon installation. You may want to consult a Saturn specialist. Here is a link to some shops near you...

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