audijim113

For last month or so, I've been getting the following along with a CEL. It runs ok, and haven't noticed decrease in performance or MPG. If I clear the fault, it comes back soon. I haven't gotten around to checking it out and bingo and suddenly, it fixed itself (I should be so lucky?) No CEL and no faults on scan for last 4-5 days. My thinking is a flakey connection. Any suggestions as to where I should look for a connector that might be the culprit?

P2251 - O2 Sensor Negative Current Control Circuit/Open Bank 1 Sensor 1
P0130 - O2 Sensor Circuit Bank 1 Sensor 1

18683 - O2 Sensor Negative Current Control Bank 1 Sensor 1, Circuit / Open
16514 - Oxygen (Lambda) Sensor Bank-1 Sensor-1; Circuit Malfunction