Multiple codes on jb4 after highway pull

Tuned435i · 02-14-2018, 03:32 PM

Did a highway pull to ~110mph when a cel popped up and the engine started running rough (very shaky and could barely accelerate). The car is a 2017 M2 with a JB4, CAI, downpipe and chargepipe, what could be the cause of these misfire codes? (codes in the attached image besides catless dp and exhaust flapper)

AlexCirci · 02-14-2018, 04:22 PM

Quote:

Originally Posted by Tuned435i

Did a highway pull to ~110mph when a cel popped up and the engine started running rough (very shaky and could barely accelerate). The car is a 2017 M2 with a JB4, CAI, downpipe and chargepipe, what could be the cause of these misfire codes? (codes in the attached image besides catless dp and exhaust flapper)

It's been discussed multiple times on this forum that jb4 has caused lots of issues. I'd ditch immediately but that just my opinion

Bt12 · 02-15-2018, 05:10 AM

No feeling worst than spending money on a tune that fucks shit up...

Tuned435i · 02-15-2018, 06:59 AM

Took all of your guys' advice and took that pos off the car. Any advice on a tune that will actually work? Preferably one I can revert back to stock for service. In the mean time, does anyone want this pos?

Endeav · 02-15-2018, 10:17 AM

Quote:

Originally Posted by Tuned435i

Took all of your guys' advice and took that pos off the car. Any advice on a tune that will actually work? Preferably one I can revert back to stock for service. In the mean time, does anyone want this pos?

As far as piggybacks go, not really. The JB4 just doesn't work well solo with the M2 unless you have some supplemental fueling or a back-end flash.

PTF / Bootmod3 will be releasing their N55 OBDII Unlock and Flash very soon. They also have a OBDII lock and reflash to stock option.

I'm not 100% certain if that's 100% undetectable to BMW, my guess is that it isn't but it sounds promising. Just understand that there is a risk.

Yiruna · 02-15-2018, 11:01 AM

Quote:

Originally Posted by Tuned435i

Took all of your guys' advice and took that pos off the car. Any advice on a tune that will actually work? Preferably one I can revert back to stock for service. In the mean time, does anyone want this pos?

Nice Lamborghini.

BM3 seems to be the most promising in terms of future feature options.

alscks0414 · 02-15-2018, 03:15 PM

Quote:

Originally Posted by Tuned435i

Took all of your guys' advice and took that pos off the car. Any advice on a tune that will actually work? Preferably one I can revert back to stock for service. In the mean time, does anyone want this pos?

Yup... I cant read but see Huracan beside

mike@x-ph.com · 02-15-2018, 03:33 PM

Your codes are misfire codes, this is due to the combination of bad spark plugs + high boost.

You would have gotten the same codes no matter which tune you used.

Misfires are caused by either failing spark plugs (fixed by changing them) or map being too aggressive (fixed by using map 5 or 6).

boostaddict305 · 02-18-2018, 09:02 PM

I ve been running a jb4 on my m2 for a while after a bunch of logs and the car not being happy In maps 1-2 I ended up putting it on map 5 and it's been great since

Yiruna · 02-18-2018, 09:04 PM

Quote:

Originally Posted by ***********305

I ve been running a jb4 on my m2 for a while after a bunch of logs and the car not being happy In maps 1-2 I ended up putting it on map 5 and it's been great since

What is map 5 again?

boostaddict305 · 02-18-2018, 09:05 PM

Quote:

Originally Posted by Yiruna

Quote:

Originally Posted by ***********305

I ve been running a jb4 on my m2 for a while after a bunch of logs and the car not being happy In maps 1-2 I ended up putting it on map 5 and it's been great since

What is map 5 again?

Auto tune

02-14-2018, 03:32 PM	#1
Tuned435i Private 75 Rep 78 Posts Drives: 2017 M2 6spd Join Date: Jun 2015 Location: Tampa, FL iTrader: (0)	Multiple codes on jb4 after highway pull Did a highway pull to ~110mph when a cel popped up and the engine started running rough (very shaky and could barely accelerate). The car is a 2017 M2 with a JB4, CAI, downpipe and chargepipe, what could be the cause of these misfire codes? (codes in the attached image besides catless dp and exhaust flapper) Attached Images __________________ Instagram @f87nick Last edited by Tuned435i; 02-14-2018 at 03:42 PM..
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02-15-2018, 05:10 AM	#3
Bt12 Captain 391 Rep 960 Posts Drives: 2018 X5,2018 m2, 2018 x1 Join Date: Sep 2017 Location: Bicoastal iTrader: (0)	No feeling worst than spending money on a tune that fucks shit up...
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02-15-2018, 06:59 AM	#4
Tuned435i Private 75 Rep 78 Posts Drives: 2017 M2 6spd Join Date: Jun 2015 Location: Tampa, FL iTrader: (0)	Took all of your guys' advice and took that pos off the car. Any advice on a tune that will actually work? Preferably one I can revert back to stock for service. In the mean time, does anyone want this pos? Attached Images __________________ Instagram @f87nick
	Appreciate 1 BeemerBoost118.00 Quote

02-15-2018, 03:33 PM	#8
mike@x-ph.com BimmerPost Supporting Vendor 24178 Rep 190,750 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Your codes are misfire codes, this is due to the combination of bad spark plugs + high boost. You would have gotten the same codes no matter which tune you used. Misfires are caused by either failing spark plugs (fixed by changing them) or map being too aggressive (fixed by using map 5 or 6). __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435 Last edited by mike@x-ph.com; 02-15-2018 at 04:01 PM..
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02-18-2018, 09:02 PM	#9
boostaddict305 First Lieutenant 58 Rep 358 Posts Drives: M2 Join Date: Apr 2013 Location: RI iTrader: (0)	I ve been running a jb4 on my m2 for a while after a bunch of logs and the car not being happy In maps 1-2 I ended up putting it on map 5 and it's been great since
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