2004 5.7 liter hemi
My hemi has a few upgrades on it, all mild of
course. But it will not run on any fuel less than
91 octane, I put 6 gallons of 94 octane, in a 3/4
full tank of 91 octane. Drove 30 miles it quit
won't start back.
What upgrades? Any trouble codes?
Sounds like your upgrades are not compatible with the current computer calibrations.
I find it hard to believe that a little higher octane added to a 3/4 full tank would cause it to quit running. Go back to the basics: does it have spark / fuel, etc.
I would remove the upgrades and try again if it is not too late....
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