RepairPal's independent, master mechanics track down the best of the best in auto repair. Learn more »
Get the latest advice about your car
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?
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... https://repairpal.com/directory?address=23231&car_brand_names=Saturn