Originally Posted by TCOC rel1
I thought we had a smart ECU that adjust for premium fuel already? And mine goes lean already at 184 FWHP, so I don't think a tuner is in the works without new injectors.
Have you reached the limit of the injectors or just what the ECU has as a fueling limit? And how would one really know, save trying a tuner? I honestly don't know if Ford doesn't publish the info.
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