2015 f80 m3 6mt breaking up at 6000rpm..

[nealsonridesfit312]

hi guys have a 2015 m3 6 speed....has jb4 downpipes intakes map 2

car was running fine was doing a 3rd gear roll pull and at the top of 3rd gear car is sputtering at 6000 rpms, wont go past....and same with 4th gear around 6k also

1st and 2nd gear go straight 7000 rpm with no problems at all...

just put ngk step 2 0.20 didnt fix the issue..

please help im stuck thanks guys

[TrevorM3]

tried running a different map?

[nealsonridesfit312]

Originally Posted by TrevorM3

tried running a different map?

Yes tried it with jb4 deactive... tried map 1 still the same

I'm lost maybe fuel but I'm not sure

[dmk08]

Originally Posted by nealsonridesfit312

Yes tried it with jb4 deactive... tried map 1 still the same

I'm lost maybe fuel but I'm not sure

You're saying your car is breaking up even in MAP 0? (disabled)

Do you have any JB4 logs? That will be the easiest way to see what is happening.

What kind of fuel?

[nealsonridesfit312]

Originally Posted by dmk08

You're saying your car is breaking up even in MAP 0? (disabled)

Do you have any JB4 logs? That will be the easiest way to see what is happening.

What kind of fuel?

even on map 0...im gonna try again on map 0 i never tried with the new plugs yet and nope but i just ordered the jb4 bluetooth smart kit thing so i can read the data...

and 93 octane

[kerm1t]

Originally Posted by nealsonridesfit312

even on map 0...im gonna try again on map 0 i never tried with the new plugs yet and nope but i just ordered the jb4 bluetooth smart kit thing so i can read the data...

and 93 octane

Just to be safe, I wouldn't do any more pulls until you get the Bluetooth kit installed. You need to post logs

[nealsonridesfit312]

Originally Posted by kerm1t

Just to be safe, I wouldn't do any more pulls until you get the Bluetooth kit installed. You need to post logs

just took car out seemed pretty fine on map 2 top of 3rd gear didnt break up or nothing

[mike@x-ph.com]

you need to datalog and send them to BMS team, sounds like a spark plug or fueling issue.