So engine out and found some very tiny and light scratches on piston wall, the spark plug was completely black and i also asked my tuner and they think spark plug, bad injector was a cause and possibly that cylinder running lean and what caused it. Changed all spark plugs, coil packs and seems a little better
Debating on either swapping or putting an IAG engine in.
Car turns on, very tiny smoke coming out on full throttle, can barely even notice anything. But debating on either swapping or putting an IAG engine in now
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