At the end of fall last year I put my car away for winter. Disconnected the battery and kept it inside etc. Well I put my car back on the road, hooked everything up and my wideband is stuck at 14.7-14.8 once and a while reading --- but nothing else. Is my sensor shot already? Or do I have to disconnect it and let it calibrate again (which I never had to do in the first place so I'm confused)

Thanks in advance