I changed the O2 sensor yesterday and cleared the code. I also changed the thermostat with a new Genuine Saab one because when I got my car back from the mechanic, he let me know that his TechII had given me a code for it and he put it on the invoice.
O2 sensor code did not come back on yet but an unusual thing is happening. When I shut down the car, it sputters as though it still wants to stay running. The only thing I can think of for that weird issue is that it is misfiring or there may be something going on with the ignition switch. I'm going to swap out the DI cassette to see if that does something because I did swap that out before to deal with some random misfiring which I found out later that it would be related to the thermostat sensor going out due to incorrect engine temp readings.