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Old 12-14-2019, 10:58 PM   #1
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help reading logs oft, knock?

hello, i need help trying to to figure out if my car is slowly dying or if its bad gas? so here is a little bit about what happen awhile back i got some i guess low E% gas and it started to pull time (me guessing)went all the way low to E, filled up again but now i noticed the ADV Multi i is not 1 and the LTFT is really low. (see data linked) i dont know if i should just go back to 93? just run out the gas and refill E85? retune for 87-93 untill tank on on E cause of the LTFT? Drain the tank, look for other problems or is the engine in a downward state now, and its too late?

PS i have an 15 frs with around 67k miles if this help any

Thanks all for reading and helping in advance

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Old 12-15-2019, 06:29 AM   #2
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Judging by the ltft arround -15% and knock and low iam id say you got some very low ethanol content e85 like 50%. Drive easy till you get some better e85.
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