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Rough idle and vibrating on acceleration

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Old Aug 14, 2018, 06:25 PM
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Rough idle and vibrating on acceleration

Went to drive the Evo today and ran into an issue with poor/shaky acceleration. Kept vibrating like it was about to stall. Stopped and noticed the idle was pretty rough. My best guess is need to replace the spark plugs, but the Evo is practically new (less than 2k miles). Since it’s not my daily it tends to sit and probably only gets driven once or twice a month, but still seems odd to me. No issues the last time I drove it, probably about 3 week’s ago. Any ideas?
Old Aug 15, 2018, 06:10 AM
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bad gas? put some octane booster in and see how it runs
Old Aug 16, 2018, 12:25 PM
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Check to make sure no little critters ate your vacuum lines.... sounds like a vacuum leak to me...
Old Aug 16, 2018, 03:21 PM
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boost leak test




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