JB4 car not going into Gear

boost4breakfast · 10-13-2021, 02:50 PM

Does dealer void warranty for downpipes?

JK-M5 · 10-13-2021, 03:25 PM

just be careful what you post here if its a new car,

brava09 · 10-14-2021, 09:29 AM

Quote:

Originally Posted by boost4breakfast

Does dealer void warranty for downpipes?

Yep, and for JB4 too

AHall · 10-14-2021, 11:41 AM

Quote:

Originally Posted by brava09

Quote:

Originally Posted by boost4breakfast

Does dealer void warranty for downpipes?

Yep, and for JB4 too

Can you not just install original downpipes and remove JB4 before taking it to the dealer?

Blackedm5f90 · 10-14-2021, 12:23 PM

Quote:

Originally Posted by AHall

Can you not just install original downpipes and remove JB4 before taking it to the dealer?

you can but your bmw uploads/stores all kinds of data including torque, boost, hp, speed etc. numbers and they can see that you were outside the stock numbers and hence decipher there was some sort of tune in place.

boost4breakfast · 10-14-2021, 06:50 PM

I took off the JB4 and the drivetrain faults and malfunctions went away. Car was underivable. Hooked back only the TMAP connections an d car drive fine. Started it again and same drivetrain fault and underivable

AHall · 10-14-2021, 08:53 PM

Quote:

Originally Posted by boost4breakfast

I took off the JB4 and the drivetrain faults and malfunctions went away. Car was underivable. Hooked back only the TMAP connections an d car drive fine. Started it again and same drivetrain fault and underivable

This is on you 2021 M5C? I hope you get it sorted out.

AngryInch · 10-14-2021, 09:35 PM

You need to update your JB4 firmware. Version 12 I think. If you have the previous 9, it will produce driveline fault in LCI comp pkg, with ewg connected.

You can also disable ewg by clicking bit 5 in the advanced menu, however, this isn’t required with firmware 12.

boost4breakfast · 10-15-2021, 10:21 AM

Quote:

Originally Posted by AHall

This is on you 2021 M5C? I hope you get it sorted out.

its on the 2021 comp. Car was sputtering when started it up. It randomly starts working and then is undrivable again. IDK whether to take to dealer or to Auto Couture

boost4breakfast · 10-15-2021, 10:22 AM

Quote:

Originally Posted by AngryInch

You need to update your JB4 firmware. Version 12 I think. If you have the previous 9, it will produce driveline fault in LCI comp pkg, with ewg connected.

You can also disable ewg by clicking bit 5 in the advanced menu, however, this isn’t required with firmware 12.

updated to firmware 12 and with TMAP car was working fine. Went back to dead can't shift into drive this morning.

onfireX5 · 10-15-2021, 10:48 AM

Quote:

Originally Posted by boost4breakfast

updated to firmware 12 and with TMAP car was working fine. Went back to dead can't shift into drive this morning.

Have you tried removing JB4 , putting it back to stock, disconnect the battery for 10 minutes to see if it returns to normal ?

AngryInch · 10-15-2021, 11:13 AM

Strange! Did you email Terry??

boost4breakfast · 10-17-2021, 08:25 PM

Quote:

Originally Posted by onfireX5

Have you tried removing JB4 , putting it back to stock, disconnect the battery for 10 minutes to see if it returns to normal ?

Didn't fix the issue. Does anyone know how to put the car into manually Neutral so it can be towed?

AHall · 10-17-2021, 08:39 PM

I think if you move the shifter to the left and do not engage park the car will be in neutral. Only use flat bed for transporting.

boost4breakfast · 10-30-2021, 05:24 PM

Got the car to Auto Couture. After diagnosing it, the people who installed my downpipes didn't secure the transmission harness properly which led to it melting. Getting a new transmission harness hoping that it will be ready to go. Wasn't a JB4 issue but still won't be hooking up the EWG and only will stick with the TMAP as the Map1 with TMAP pulls harder than with EWG for some reason.

AngryInch · 10-30-2021, 09:13 PM

Are you a competition model?? Post a log please please..

boost4breakfast · 10-31-2021, 06:07 PM

Quote:

Originally Posted by AngryInch

Are you a competition model?? Post a log please please..

Yea its a comp.

AngryInch · 10-31-2021, 10:27 PM

Do a wide open run from 3rd to top of 5th or 6th gear and post the zoomed in of the WOT section..

Add in more cylinders of timing, boost, trims2.

I want to compare yours to mine... What year is your car? Edit, NM, I see a 21, same as me.

Did you do a draggy run to confirm it wasn't pulling harder with EWG? Be nice to see a log from that too. I had to turn FF down to 40 on mine the boost was going too high in map2.

28m5 · 11-07-2021, 11:22 AM

Quote:

Originally Posted by boost4breakfast

Got the car to Auto Couture. After diagnosing it, the people who installed my downpipes didn't secure the transmission harness properly which led to it melting. Getting a new transmission harness hoping that it will be ready to go. Wasn't a JB4 issue but still won't be hooking up the EWG and only will stick with the TMAP as the Map1 with TMAP pulls harder than with EWG for some reason.

Quote:

Originally Posted by boost4breakfast

Got the car to Auto Couture. After diagnosing it, the people who installed my downpipes didn't secure the transmission harness properly which led to it melting. Getting a new transmission harness hoping that it will be ready to go. Wasn't a JB4 issue but still won't be hooking up the EWG and only will stick with the TMAP as the Map1 with TMAP pulls harder than with EWG for some reason.

There is a service recall for the transmission harness getting burnt. Your dealer will sort it out. Just google it you will see there are even news articles on the same. It's happened to my 2020 Comp, stranded on the road, car would throw every possible code and get stuck in Park. The catless downpipes accelerate the melting of the harness due to excessive heat, but it was bound to happen even with stock Downpipes. The re route it a different way as per the recall.

greentrbo95gst · 11-21-2021, 09:19 PM

I just ran a 10.3 with just tmap plugs in and map 2. 21 comp

10-13-2021, 02:50 PM	#1
boost4breakfast Enlisted Member 3 Rep 38 Posts Drives: 992 GT3 24 M4C 21 M5C (gone) Join Date: Jan 2021 Location: CLE iTrader: (0)	JB4 car not going into Gear Does dealer void warranty for downpipes? Last edited by boost4breakfast; 10-13-2021 at 03:36 PM..
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10-13-2021, 03:25 PM	#2
JK-M5 Second Lieutenant 61 Rep 240 Posts Drives: MBB F90 M5 Join Date: Jan 2016 Location: United Kingdon iTrader: (0)	just be careful what you post here if its a new car,
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10-14-2021, 06:50 PM	#6
boost4breakfast Enlisted Member 3 Rep 38 Posts Drives: 992 GT3 24 M4C 21 M5C (gone) Join Date: Jan 2021 Location: CLE iTrader: (0)	I took off the JB4 and the drivetrain faults and malfunctions went away. Car was underivable. Hooked back only the TMAP connections an d car drive fine. Started it again and same drivetrain fault and underivable
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10-14-2021, 09:35 PM	#8
AngryInch Lieutenant 213 Rep 548 Posts Drives: 2021 BMW M5 Comp Join Date: Jul 2021 Location: Canada iTrader: (0)	You need to update your JB4 firmware. Version 12 I think. If you have the previous 9, it will produce driveline fault in LCI comp pkg, with ewg connected. You can also disable ewg by clicking bit 5 in the advanced menu, however, this isn’t required with firmware 12.
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10-15-2021, 11:13 AM	#12
AngryInch Lieutenant 213 Rep 548 Posts Drives: 2021 BMW M5 Comp Join Date: Jul 2021 Location: Canada iTrader: (0)	Strange! Did you email Terry??
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10-17-2021, 08:39 PM	#14
AHall Lieutenant Colonel 974 Rep 1,795 Posts Drives: 1993 Nissan 240sx Join Date: Oct 2008 Location: Frisco, Texas iTrader: (0)	I think if you move the shifter to the left and do not engage park the car will be in neutral. Only use flat bed for transporting.
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10-30-2021, 05:24 PM	#15
boost4breakfast Enlisted Member 3 Rep 38 Posts Drives: 992 GT3 24 M4C 21 M5C (gone) Join Date: Jan 2021 Location: CLE iTrader: (0)	Got the car to Auto Couture. After diagnosing it, the people who installed my downpipes didn't secure the transmission harness properly which led to it melting. Getting a new transmission harness hoping that it will be ready to go. Wasn't a JB4 issue but still won't be hooking up the EWG and only will stick with the TMAP as the Map1 with TMAP pulls harder than with EWG for some reason.
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10-30-2021, 09:13 PM	#16
AngryInch Lieutenant 213 Rep 548 Posts Drives: 2021 BMW M5 Comp Join Date: Jul 2021 Location: Canada iTrader: (0)	Are you a competition model?? Post a log please please..
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10-31-2021, 10:27 PM	#18
AngryInch Lieutenant 213 Rep 548 Posts Drives: 2021 BMW M5 Comp Join Date: Jul 2021 Location: Canada iTrader: (0)	Do a wide open run from 3rd to top of 5th or 6th gear and post the zoomed in of the WOT section.. Add in more cylinders of timing, boost, trims2. I want to compare yours to mine... What year is your car? Edit, NM, I see a 21, same as me. Did you do a draggy run to confirm it wasn't pulling harder with EWG? Be nice to see a log from that too. I had to turn FF down to 40 on mine the boost was going too high in map2.
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11-21-2021, 09:19 PM	#20
greentrbo95gst Brigadier General 1231 Rep 4,106 Posts Drives: 21 M5 Comp Join Date: Jan 2011 Location: Orange County iTrader: (6)	I just ran a 10.3 with just tmap plugs in and map 2. 21 comp __________________ Current: 21 M5 Comp, 17 X5M, 06 M3, 14 Ferrari FF, Tesla Model S Performance.
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