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**MidWest281** · 03-25-2013, 06:31 PM

Yeah its normal for a misfire every once and awhile. A Diagnostic Trouble Code (DTC) will only set if there is a consecutive misfire on a specific cylinder. I forget the number of misfires it takes to set a code, I think it's 5 consecutive. I could be wrong though, and im too lazy to look up the exact info right now.

Ford Motor Company's scan tool and software has a special feature called "Mode 6 data". In this data it counts misfires on each individual cylinder. There may be a few misfire counts on each cylinder without a DTC setting, which is normal.

Technically almost every ignition is a misfire, because you don't get perfect ignition and perfect combustion....

At any rate, a couple misfires here and there is no real cause for concern unless you get something consistent, and if that's the case, a DTC will set. (If the misfire profile is learned, MP_LRN = YES)

03-25-2013, 06:31 PM	#5
MidWest281 Senior Member Join Date: Mar 2013 Location: Carrollton Age: 35 Posts: 217	Yeah its normal for a misfire every once and awhile. A Diagnostic Trouble Code (DTC) will only set if there is a consecutive misfire on a specific cylinder. I forget the number of misfires it takes to set a code, I think it's 5 consecutive. I could be wrong though, and im too lazy to look up the exact info right now. Ford Motor Company's scan tool and software has a special feature called "Mode 6 data". In this data it counts misfires on each individual cylinder. There may be a few misfire counts on each cylinder without a DTC setting, which is normal. Technically almost every ignition is a misfire, because you don't get perfect ignition and perfect combustion.... At any rate, a couple misfires here and there is no real cause for concern unless you get something consistent, and if that's the case, a DTC will set. (If the misfire profile is learned, MP_LRN = YES) __________________ 2013 Performance White Boss 302 -Stock 2002 Mineral Gray GT -VT engines Stage 2 N/A cams, full SLP exhaust, 4.10 gear...etc. Last edited by MidWest281; 03-25-2013 at 06:35 PM.