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Tracking down codes & fun upgrade!

E

Envain

Member
San Jose, Ca
Just got the Wagner fmic boy what a joy to install. The cold side connection just didnt want to play nice.
This is as good as I could get it, im going to prob bring it into a shop to see if they can fit it better than I could.

I decided to go to mhd 1+ and drove around for a bit to see if I could tell of any boost leaks. Everything sounded fine for about a hour diving around, boost seemed fine too, about 10 mins from my house though i went full throttle one last time and got engine code for c6, very rough driving that last bit home.
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This morning after resetting codes and flashing back to stock to test, then flash back to map 1 did some spirted driving and felt normal. aside from getting some dme codes.

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Sitting at 13k miles.
plugs are new (within last 1k miles)
Im thinking the coils are original so I have replacements on order.

The power management issues, im thinking has to be either the installed parking sensors that the original owner did, or maybe mr12v? not sure there.
 
Cylinder 6 misfire first port of call coils, then plugs then injectors then the 'mysterious' cyl 6 misfire which is unusual below 500 bhp ish

Current violation could be anything, usually an accessory recently fitted or stock units starting to go bad..current monitoring will give a clue..
 
B21 said:
Cylinder 6 misfire first port of call coils, then plugs then injectors then the 'mysterious' cyl 6 misfire which is unusual below 500 bhp ish

Current violation could be anything, usually an accessory recently fitted or stock units starting to go bad..current monitoring will give a clue..
Click to expand...

Thanks, Im assuming going to the Stage 1+ tune started this with the more aggressive map and the coil or injector couldnt handle it.
I went back to Map one, and did a few WOT couldnt reproduce the issue.
I purchased a set of the OEM Coils so we will see if that fixes it.

Would these other two codes have any effect on missfires?

On a side note, Got to go to a bmw meet and ran into this beauty.
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Very common that on the N54 OTS tunes precipitate misfires obviously the more aggressive the tune the more likely a misfire ..almost always in that case it’s coils, plug, injectors, HPFP, boost leaks due to cracking, then turbo failures..
 
Looks like the coils was the culprit, Thanks again! Did a long drive along the california coast and she ran like a dream.
 
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