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2G Stutter In 3900-4600 RPM

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Ferp

Proven Member
159
14
Sep 14, 2014
Edmonton, Alaska
So my Eclipse is stuttering in the 3900-4600 RPM but not consistently, and not always at WOT. Sometimes it happens at mid throttle, sometimes full. I'm running an Evo 16G and it happens at any boost level, whether it's 14, 16, or 18. I'm not running lean or rich or anything, WB is good. I changed out my spark plugs & wires but with no avail. I also cleaned my MAF. Where should I look next?
 
My tune is fine. Car was running fine and I haven't touched a thing on it in over a month and this started last week.

You didn't answer the question. What are you using to tune with? I don't see anything in your profile.
 
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