tuner causing spark knock?
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Old September 26th, 2011, 06:28 PM   #1
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tuner causing spark knock?


so last fall i bought a SCT SF3/X3 Power Flash Tuner from AM, after installing the tune i noticed that under heavy acceleration i heard like a rattling noise coming from what sounded like the front left side of the car. I heard it might be something called spark knock...? do i have to advance timing/anyone who had this problem want to walk me through it? thanks guys
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Old September 26th, 2011, 06:34 PM   #2
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what octane fuel you putting in ? and what does the tune call for
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Old September 26th, 2011, 06:40 PM   #3
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calls for 87 and i put in 87 from holiday
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Old September 26th, 2011, 08:58 PM   #4
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any advise? i hear i can do something with the timing but I'm not sure what to do
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Old September 26th, 2011, 09:23 PM   #5
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put a higher octane in too see if it still does it.
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Old September 26th, 2011, 09:37 PM   #6
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Wait so you bought it last fall and just installed the tune now? or the noise just started happening now?
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Old September 27th, 2011, 02:09 PM   #7
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no i installed it last fall but i couldn't pinpoint what it was so i have just been driving it... but i only put like 2.7k on it since last fall.
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