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Old 05-21-2018, 11:25 AM   #1
Bakerboy15
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Member#: 483145
Join Date: Mar 2018
Chapter/Region: MWSOC
Location: Topeka, KS
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2011 STi Hatch
Red

Default Missfire at high RPM

Over the past few months I have been working with a highly suggested remote tuner. He has asked me to take my car to a mechanic to figure out my missfire that I'm seeing in my logs at high RPM. I would like to figure this out on my own rather than having a mechanic dig into it. My mods are down pipe, up pipe, tial ewg, ebc, fpr, Cobb intake. I'm showing cylinder roughness on cylinder 2 for the most part. I changed spark plugs and swapped coils 2/4. Any ideas are greatly appreciated.
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Old 05-22-2018, 02:11 AM   #2
Harey
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'15 Foz XT & GT86

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What does cylinder roughness mean? Can you post up a link to the log files?
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Old 05-22-2018, 09:27 AM   #3
86Dreams
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'21 Giulia Q4

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You could compression test it. Swap around injectors, and check resistance of the wires.
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Old 05-22-2018, 10:31 AM   #4
Bakerboy15
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