Weng
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Hi Adam, this log is I half throttle Boosting around 0.3bar(4psi), It no misfire or jerking at 4-4.5k rpm that range 09.05.20 v1.pclr Log 2020-05-9 4;40;58 pm.llg
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I need find a oscilloscope 1st since my country not every workshop have it, BTW thanks for the advice, will post here after get the crank signal pettern
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remski2 reacted to a post in a topic: Misfire and jerking at range 4-4.5k rpm only
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The afr lean at 4-4.5k rpm is cause misfire, I have add fuel up to 10ve+, it still misfire at that range of rpm
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Denso iridium it24 Gap 0.6mm
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Weng joined the community
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Log 2020-05-7 2;19;06 pm.llg06.05.20.pclrHi guy, my car have a misfire and jerking around 4-4.5k rpm, before and after this range is no problem. I have change all 4 cop and spark plug, Advanced 4 degree and retard 4 degree, Adding more fuel at that range, still can't solve the problem, it still jerking and misfire at 4-4.5k rpm this range Car spec : 1.6L bolt on turbo Links g4+ atom2 Boosting 0.5 bar Using fuel Ron 95 octane Mapping https://drive.google.com/file/d/1RBTmVRRrjbIWoxL4r4WjHVRgO8786pe4/view Log https://drive.google.com/file/d/1RHqNHhx-KPs1YfbHohPeOalp5GEMtKCg/view 06.05.20.pclr Log 2020-05-7 2;19;06 pm.llg