Is a reflash of the ECM necessary
I have gotten a Check engine light a couple of times, and then soon after it goes off. I hae a mechanic pull the codes and it is saying that Back 1 and 2 O2 sensors are staring to fail. He suggested...
Forum Discussion
Clearing codes does not require a re-flash. You can clear codes using a TechII or in my case I have cleared codes in the past using my Edge Insight CTS monitor.
