I've left the battery unhooked then cleared the code for a half hour it went away for 2-2.5 days i thought i was clear then it came up again i unhooked the battery again for a while the engine light went away for about a day. I have been running premium all summer last year premium ocassionally, I have heard that the 4.6 2v n/a does not need premium (91-92) so I ran regular but i noticed the car runs better on 91 over 87. But could this be the problem?? I have ran 87 a few times since the light has been on, remains on.
thanks for the help.
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