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...
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Don, yes private shops can. provided they have the factory diagnostic/scanner equipment and access to the factory updates. you can get access for X amount of dollars per year.
