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My car started off with idle rough, and no misfire codes. Idle rough went away after engine warmed up.
After 1 year, my car now idles rough on cold start AND is guaranteed to throw a misfire code (cyl 2) after 10-20 secs.
Swapped coils, changed plugs, so only thing I didn't do was replace injectors.
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PROcede | AMS FMIC | AR Catless DPs | AR Oil Cooler | BMS DCI
Wavetrac LSD | KW V3 w/ Swift Springs | M3 Front Suspension |