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**Dave Baker** · 03-10-2008, 06:01 PM

My code flashes 1221 "EGO Sensor #1...the car runs excellent as normal...Is it urgent to repair this right away? What's the typical cause, defective oxygen sensor, power relay or fuel mixture/combustion problem? Cost of repair?

03-10-2008, 06:01 PM	#4
Dave Baker Name: Dave Baker Title: United Newb Status: Offline Join Date: Mar 2008 User not setup in Rate My Car. Click here to set it up. Your Ride: 1994 BMW 325 IC	My code flashes 1221 "EGO Sensor #1...the car runs excellent as normal...Is it urgent to repair this right away? What's the typical cause, defective oxygen sensor, power relay or fuel mixture/combustion problem? Cost of repair?