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      01-06-2021, 01:39 PM   #1
Principe
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2021 BMW M5 LCI Competion Help

Hi every one i have a little situation and want you guys help or input

Car:
2021 BMW M5 LCI Competition

Mod:
Catless downpipe
Mid section delete (race pipe)
Akraprovic exhaust
Full intake Lusso Performance (Front Bumper)
JB4 w/Bluetooth adapter (suck)

Problem:
Ck engine is on code are
180001 catless downpipe detected
180101 catless downpipe detected bank 2

I have JB4 with the latter firmware and to be hones suck don’t delete i been talking to them no help what so ever upgrade the chip the Bluetooth adapter and no luck

Try to have the MHD have the adapter but look like the ECU is lock my car is built in 8/2020

What option i have or what to do

Thank in advance

Quick note i have all that on my 2018 M5 1st edition and work perfect now JB4 telling me that JB4 from 2016 and older don’t deleted the ck engine light note person was (Ando) to confirm thank
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      01-06-2021, 04:04 PM   #2
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Quote:
Originally Posted by Principe View Post
Hi every one i have a little situation and want you guys help or input

Car:
2021 BMW M5 LCI Competition

Mod:
Catless downpipe
Mid section delete (race pipe)
Akraprovic exhaust
Full intake Lusso Performance (Front Bumper)
JB4 w/Bluetooth adapter (suck)

Problem:
Ck engine is on code are
180001 catless downpipe detected
180101 catless downpipe detected bank 2

I have JB4 with the latter firmware and to be hones suck don't delete i been talking to them no help what so ever upgrade the chip the Bluetooth adapter and no luck

Try to have the MHD have the adapter but look like the ECU is lock my car is built in 8/2020

What option i have or what to do

Thank in advance

Quick note i have all that on my 2018 M5 1st edition and work perfect now JB4 telling me that JB4 from 2016 and older don't deleted the ck engine light note person was (Ando) to confirm thank
CEL has to be removed via flash tune or remove DP's .. JB4 will not remove CEL.

The early JB4's did remove but latter versions did not ..
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      01-06-2021, 06:38 PM   #3
Principe
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I understand that but no flash tune yet on the 2021 M5 yet that why I’m need help

I don’t know if a o2 plug extender will help or fix it or some one else have the same situation and have it resolve it I don’t want to remove the cat delete yet ??
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      01-07-2021, 04:37 PM   #4
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Are you noticing any acceleration improvements with the JB4 on the 2021?
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      01-08-2021, 06:58 PM   #5
Principe
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Quote:
Originally Posted by Kponti View Post
Are you noticing any acceleration improvements with the JB4 on the 2021?
Nop to give you a example i ran 10.8 with the M5 2018 1st edition JB4 exhaust downpipe filters and i ran 10.9 M5 2021 Competition Stock
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      01-11-2021, 01:27 PM   #6
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Quote:
Originally Posted by Principe View Post
Nop to give you a example i ran 10.8 with the M5 2018 1st edition JB4 exhaust downpipe filters and i ran 10.9 M5 2021 Competition Stock
Not sure you understood my question so let me rephrase.
Is your 2021 M5c faster after you installed the JB4 or did it stay about the same?

BTW 10.9 stock is pretty fast!
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      01-11-2021, 05:59 PM   #7
Principe
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Quote:
Originally Posted by Kponti View Post
Not sure you understood my question so let me rephrase.
Is your 2021 M5c faster after you installed the JB4 or did it stay about the same?

BTW 10.9 stock is pretty fast!
Same I don’t see diferent i try map 1, 2 and 3 but i keep you update when i get back to the track after i resolve the ck engine problem
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      01-12-2021, 12:04 AM   #8
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There is no flash tune available on 2021 right now, and jb4 will not remove check engine either.

You either have wait until the ecu is cracked so you can flash, or take off downpipes.

You will not get any further help from the forum, as there is no solution available as of now.
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      01-12-2021, 08:54 AM   #9
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Quote:
Originally Posted by Principe View Post
Same I don’t see diferent i try map 1, 2 and 3 but i keep you update when i get back to the track after i resolve the ck engine problem
Got it. Thanks for the current and future updates.
Seems even Piggys are being affected by this new updated software. Time to look into the M8c and stay stock
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      01-14-2021, 12:41 PM   #10
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Quote:
Originally Posted by Kponti View Post
Got it. Thanks for the current and future updates.
Seems even Piggys are being affected by this new updated software. Time to look into the M8c and stay stock
Nice option i will maybe trade it for a Huracán 2021 will see i have this lock ECM
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