Alright, last night as i was pulling up the parking lot for my dorm building, my car starting sputtering and hesitating and generally being very gay. It threw a CEL and at idle is sounded lopey like an old muscle car with a big cam. Under any throttle it sputters and shudders and feels really weak. I jumped the connector to check my ECU codes and got 23 and 41. 23 is the kock sensor (no surprise) and then 41 is the o2 sensor heater or something. Now before anyone says anything, yes i converted to four-wire when I did the swap, so that's not the issue. I'm thinking the o2 sensor may just very well be fucked because it's acting so weird. The strange thing though, is that it didn't throw CEL #1 which is the actual o2 sensor code. Any thoughts or suggestions before I bend over and drop $100+ on a new o2 sensor?