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kabbanib kabbanib is offline
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Default Misfire only at 6300 4rth gear with 620whp hpfp? - 12-01-2016, 06:35 AM

Hi i tried to log aftr i changed coil injector and spark plug i had misfire on cylinder number 6 but aftr all this the misfire remains and will only occur over 6300rpm on 4rth gear am on fbo meth pure stage 2 , lpfp fuel it stage 2,,25 psi*

Maybe my hpfp is maxed out ? am on 620whp without any port injector just pump gas and meth what do u think ? only over 6300 rpm on 4th gear approx 260km it misfires only on cylinder number 6 i changed eveything. but remains the misfire i swapped coils and bought new 1 still misfire remains on cylinder number 6 , could it be the hpfp maxed am i right ?
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miksebik miksebik is offline
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Default 12-01-2016, 07:10 AM

Do you have dual-mass flywheel, or single mass flywheel? My DMFW caused this, no problem with the SMFW...


E92 335i N54, Hexon RR500, JB4, DCI, MMP inlets, ER chargepipe, Turbosmart Kompact Dual Port BOV, ATM IC, Wagner downp*pes, MPerformance exhaust, oil cooler, trebila flash (via MHD Flasher), E60, M Performance 370mm brakes, styling 313 wheels, M Performance suspension, Fuelit Stage2, MFactory LSD, MFactory SMWF
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kabbanib kabbanib is offline
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Default 12-01-2016, 09:49 PM

I have an automatic with alpina flash it only misfires above 6200rpm on 4th gear
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Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 12-02-2016, 08:54 AM

As stated via email, you'll need to troubleshoot the misfires, we can't do much with those via logs.

What plugs and what are they gaped to?



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kabbanib kabbanib is offline
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Default 12-03-2016, 01:17 AM

Am on stock bosch plugs zgr6ste2 ,,,thank u for the support i tried swapping injectors even i bought new injector nee spark plug and new coil on cylinder 6 still misfiring if ill run under 6000 everything will be ok.what should i do plz help its driving me crazy ? The local mecaniq told me hpfp is maxed out but my logs show otherwise
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kabbanib kabbanib is offline
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Default 12-03-2016, 01:18 AM

Should i change all my plugs to ngk and gap them to 0.022 ?
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kabbanib kabbanib is offline
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Default 12-03-2016, 01:20 AM

But why on 4tth gear if i hit 7300 rpm on 3rd it won't do nothing
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