06-06-2023, 02:44 PM | #1 |
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High RPM misfire help
I'm having bad misfires around 7k RPM on my car and can't figure out the cause. I've tried cleaning the MAF, put in new coils and plugs gapped to 0.022", put in fresh gas and injector cleaner (ran the tank empty after and filled with fresh 93). Not throwing any codes and an ISTA scan showed nothing.
The car is FBO pure stage 2 HF and was running fine in the fall until i blew a turbo. I had them both rebuilt by Pure and added a Wagner TMIC over the winter. The motor has roughly 16k miles on it and compression is perfect on all cylinders. Below are some logs i took, any insight from someone who knows logs better than me would be greatly appreciated! https://www.bootmod3.net/log?id=646f...729bf6613bda9e https://www.bootmod3.net/log?id=6470...90c66243bfec90 https://www.bootmod3.net/log?id=6470...90c65e4a82b9b3 |
06-10-2023, 09:09 PM | #2 |
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hello friend, I believe that your problem is spark plugs try to put the 97506 with a gap of 0.060.
if it doesn't solve it we can think that the ignition coils may be defective. |
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06-13-2023, 11:11 AM | #4 |
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check sparks gap. I solved with 0.20 ngk
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BMW M4 F83 Stage 3/4 - Akrapovic Skat DP, NO OPF, eVenturi Intake, Okada Coils, Kratos Turbos EVO, Dodson 1000 Nm Clutch Dct - Mishimoto IC, Water and Oil Coolers - CP Carillo Pistons - Arrow Connecting Rods - Reinforced bearings - Halim Cazimi HCP Software 2.0 bar Turbo - XHPFlashTool for DCT Stage 3+
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06-14-2023, 09:07 AM | #6 |
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06-14-2023, 04:16 PM | #7 | |
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Quote:
then works with ethanol today, as on today I've never overcame 30% e85, other guys a scaring me but.... slowly I'm increasing I ve bosch m5 injectors so shouldn't be troubles with 0.22 my car hiccups but I run 2.1 bar RON100
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BMW M4 F83 Stage 3/4 - Akrapovic Skat DP, NO OPF, eVenturi Intake, Okada Coils, Kratos Turbos EVO, Dodson 1000 Nm Clutch Dct - Mishimoto IC, Water and Oil Coolers - CP Carillo Pistons - Arrow Connecting Rods - Reinforced bearings - Halim Cazimi HCP Software 2.0 bar Turbo - XHPFlashTool for DCT Stage 3+
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