Rough idle, not accelerating

Mortimus

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I have a 2017 civic ext mt, intercooler, hondata, aem charge pipe and cai. When I start the car up it varies on 750 rpm-+50. When I accelerate it seems to be sputtering and not getting the performance as it did before. I checked the maf sensor and battery reset. I don’t know which hoses to check. I just changed the battery and spark plugs. Can someone help me out thanks
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gtman

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Are you getting any codes?
 
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Mortimus

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No I’m not at all. I’m gonna try to clean the throttle and see if that works at all
 

PowerPerLiter

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Check all couplers and clamps
 

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I would check any in the intake path for your replaced parts. Did you compare your plugs vs a chart to see if you were lean/rich? It may not show not having pulled them from WOT (and I sure wouldn't do that now) but it's a data point. W/o s boost gauge to quantify actual pressure it's a bit hard. It sounds like it could be a boost leak.
 
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Mortimus

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Thank you fixed it. It was a misfire cyl 3 I recently changed my spark plugs like a couple months ago and I just changed em today. Running great again. Thanks again guys for the help
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