It doesnt seem to be clean injectors causing lean burn. Notice he said he filled up and lean burn went away, he pulled over and added MMO to the fuel and lean burn came back. That seems to indicate it does something to the fuel mix and maybe sets off a sensor? I wouldnt think the injector clean/dirty state would change that quickly.
So, Bruce would you try a tank (or partial tank, given the price) of high octane fuel without adding MMO to see if its the octane that sets it off?
Any other ideas?
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