Oldsmobile Achieva engine starts but won't stay running, security light flashing after key replacement on Oldsmobile Achieva

Some Oldsmobile Achieva owners report experiencing issues where the engine starts but won't stay running, accompanied by a flashing security light after a key replacement. This flashing security light may indicate a problem with the vehicle's security system. Common causes for the engine dying shortly after starting include an empty fuel tank or a dead battery. Owners are advised to wait until the SECURITY light stops flashing before attempting to restart the engine. Some have found that performing a relearn procedure after replacing the key can provide a temporary solution. However, if the issue persists, it may be related to the passlock system, which could necessitate disabling it by cutting a specific wire in the ignition switch column. It is recommended to check the fuel level, battery connections, and the passlock system for further investigation to resolve the engine starting issue.