Wrong code list - for 104 / 202 Pin 4, code #8 is "Idle speed control (ISC) system at upper or lower control stop or CC or EA indicates "limp home" mode". If you're not in the limp home mode, and you'd probably know if you were, it must be the first one. Assuming you don't have ASR Pin 7, code #2 is "cruise control / idle speed control module". These two plus the PO505 looks like the trifecta, perhaps engine actuator. But what are the operating symptoms?