Programming ECM
WARNING: This page is about a different car, the 2002 Saab 9-5, 2002 Saab 9-3, 2001 Saab 9-5, and 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
If the power supply to the Electronic Control Module (ECM) is interrupted, all previously stored adapted sensor values will be erased. The vehicle will need to be driven for a prolonged period in order to relearn sensor data and restore peak performance.