Hi Folks,

The CEL came on and I pulled the following codes.....

DTM
Code 2 - Heated Oxygen Sensor Faulty
Code 5 - EGR Faulty
Code 12 - Heated Oxygen Sensor Heater Circuit open or short circuit

Pin 8
Code 11 - O2S1 Heater (before TWC) Current too high or too low.
Code 39 - EGR Switchover valve - open or short ground or B+

Pin 14
No codes

I'm assuming that my 02 sensor is not working properly and needs replacing. The DTM code 5 and code 39 has been on/off after resetting and it showed up again without reason. Code 5 and Code 39 has been a reoccurring issue for quite a while. I just passed smog a couple of weeks ago . FYI. Any insights is greatly appreciated. Thanks!

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