120408 and 123432 after spark plugs change/engine cleanup

luke1990 · 04-30-2020, 06:58 AM

Hi guys, I have stage 3 car on BM3 custom tune (pure 800, dp, chargepipe, wmi, BMS CAI, TU HPFP) and had spark plugs changed for the supra ones and also the engine and fuel injectors cleaned for carbon deposits. The cleaning guys gave me some additive to put in 1 fuel tank to finish it. Of course me being me I went to test the car and low and behold it was slower

.

Made logs which indicate more pulled timings down low (same top-up, but more pulls down low across more cylinders). At the end of the drive, I got drivetrain malufunction and reduced power. I checked the codes and among the ones i know of, I found 2 key ones:

Engine (DME) 123432 Electric Wastegate, Stop Learning: Stop position (weastegate closed) outside tolerance
Engine (DME) 120408 Change pressure control, shutdown: pressure build-locked

My question is - can these be tied to the spark plugs change or the engine cleanup? I found thread here that mentioned a suggestion which solved their problem and they also had spark plugs changed: "The vacuum lines to the pressure converter were installed backwards" -> can this be it? THANKS!

conradb58 · 04-30-2020, 10:05 AM

Quote:

Originally Posted by luke1990

Hi guys, I have stage 3 car on BM3 custom tune (pure 800, dp, chargepipe, wmi, BMS CAI, TU HPFP) and had spark plugs changed for the supra ones and also the engine and fuel injectors cleaned for carbon deposits. The cleaning guys gave me some additive to put in 1 fuel tank to finish it. Of course me being me I went to test the car and low and behold it was slower

.

Made logs which indicate more pulled timings down low (same top-up, but more pulls down low across more cylinders). At the end of the drive, I got drivetrain malufunction and reduced power. I checked the codes and among the ones i know of, I found 2 key ones:

Engine (DME) 123432 Electric Wastegate, Stop Learning: Stop position (weastegate closed) outside tolerance
Engine (DME) 120408 Change pressure control, shutdown: pressure build-locked

My question is - can these be tied to the spark plugs change or the engine cleanup? I found thread here that mentioned a suggestion which solved their problem and they also had spark plugs changed: "The vacuum lines to the pressure converter were installed backwards" -> can this be it? THANKS!

Subbed, need to know if we can run "Supra plugs" in B58 Gen 1 engines.

eksigned · 04-30-2020, 10:50 AM

what was the part number on the supra plugs? NGK 94201 is the plug correct for the B58 gen 1.

luke1990 · 04-30-2020, 11:12 AM

Hey guys -> its these plugs part#: 12122455258. It is no questions if you can run them - I know people can - many do. Question is what went wrong in my case

eksigned · 04-30-2020, 11:56 AM

Quote:

Originally Posted by luke1990

Hey guys -> its these plugs part#: 12122455258. It is no questions if you can run them - I know people can - many do. Question is what went wrong in my case

Pretty sure there's been discussion on different plugs vs the correct ones. Looks like those fit the G20? Don't recall what the end conversation was, but people had issues, others did not. Meanwhile, the correct plugs have had no issues. Maybe pull them and start checking for damage?

G.Newt · 04-30-2020, 01:46 PM

https://www.bimmerforums.com/forum/s...-2013-BMW-328i

kern417 · 05-02-2020, 07:59 AM

Quote:

Originally Posted by luke1990

Hi guys, I have stage 3 car on BM3 custom tune (pure 800, dp, chargepipe, wmi, BMS CAI, TU HPFP) and had spark plugs changed for the supra ones and also the engine and fuel injectors cleaned for carbon deposits. The cleaning guys gave me some additive to put in 1 fuel tank to finish it. Of course me being me I went to test the car and low and behold it was slower

.

Made logs which indicate more pulled timings down low (same top-up, but more pulls down low across more cylinders). At the end of the drive, I got drivetrain malufunction and reduced power. I checked the codes and among the ones i know of, I found 2 key ones:

Engine (DME) 123432 Electric Wastegate, Stop Learning: Stop position (weastegate closed) outside tolerance
Engine (DME) 120408 Change pressure control, shutdown: pressure build-locked

My question is - can these be tied to the spark plugs change or the engine cleanup? I found thread here that mentioned a suggestion which solved their problem and they also had spark plugs changed: "The vacuum lines to the pressure converter were installed backwards" -> can this be it? THANKS!

Did you already have the turbo installed, or was it installed at the same time? It sounds like you need to do a wastegate adaptation.

luke1990 · 05-02-2020, 08:03 AM

Quote:

Originally Posted by kern417

Quote:

Originally Posted by luke1990

Hi guys, I have stage 3 car on BM3 custom tune (pure 800, dp, chargepipe, wmi, BMS CAI, TU HPFP) and had spark plugs changed for the supra ones and also the engine and fuel injectors cleaned for carbon deposits. The cleaning guys gave me some additive to put in 1 fuel tank to finish it. Of course me being me I went to test the car and low and behold it was slower

.

Made logs which indicate more pulled timings down low (same top-up, but more pulls down low across more cylinders). At the end of the drive, I got drivetrain malufunction and reduced power. I checked the codes and among the ones i know of, I found 2 key ones:

Engine (DME) 123432 Electric Wastegate, Stop Learning: Stop position (weastegate closed) outside tolerance
Engine (DME) 120408 Change pressure control, shutdown: pressure build-locked

My question is - can these be tied to the spark plugs change or the engine cleanup? I found thread here that mentioned a suggestion which solved their problem and they also had spark plugs changed: "The vacuum lines to the pressure converter were installed backwards" -> can this be it? THANKS!

Did you already have the turbo installed, or was it installed at the same time? It sounds like you need to do a wastegate adaptation.

Turbo was installed a month back :/. Car was fine. But as I said I had the engine cleaned for carbon - maybe they messed something up?

Either way. How would I go about doing that? Can a shop do it?

say2paul · 07-14-2021, 11:00 PM

Quote:

Originally Posted by luke1990

Turbo was installed a month back :/. Car was fine. But as I said I had the engine cleaned for carbon - maybe they messed something up?

Either way. How would I go about doing that? Can a shop do it?

How did you solve it? i am having the same issue with my 328i xDrive

T_H_O_M_A_S · 07-15-2021, 07:55 AM

why the change to tu plugs ?? oem's are just fine , like many threads in this section , they change plugs and after a while they ran into codes or other problems

alrifaieh · 03-12-2024, 09:56 PM

Did u ever figure it out

viktorbaffil · 04-06-2024, 06:31 PM

Hey guys

My 2015 bmw x6 is having exactly the same error codes as some of you here.
The screen shows the drivetrain malfunction
Note that the spark plugs were replaced 4 months ago.

Can anyone explain how it was to fix it?
Did you take it to a dealer? And how much it was?

Any info will be appreciated

123401 electric wastegate, learning stop: malfunction during catalyc converter heating

123432 electric wastegate, learning stop: stop position (wastegate closed) outside valid range

120408 chargin pressure control, deactivation: pressure build-up blocked

G.Newt · 04-07-2024, 03:43 PM

Quote:

Originally Posted by viktorbaffil

Hey guys

My 2015 bmw x6 is having exactly the same error codes as some of you here.
The screen shows the drivetrain malfunction
Note that the spark plugs were replaced 4 months ago.

Can anyone explain how it was to fix it?
Did you take it to a dealer? And how much it was?

Any info will be appreciated

123401 electric wastegate, learning stop: malfunction during catalyc converter heating

123432 electric wastegate, learning stop: stop position (wastegate closed) outside valid range

120408 chargin pressure control, deactivation: pressure build-up blocked

Need to replace your wastegate, spark plugs have nothing to do with it.

Beast.58 · 04-09-2024, 05:10 AM

Did you guys w this issue unplug your battery when changing the plugs?

Fast_Rabbi · 04-11-2024, 03:13 AM

That doesn't change anything to unplug the battery for a sparkplugs change.

04-30-2020, 06:58 AM	#1
luke1990 Second Lieutenant 133 Rep 296 Posts Drives: G30 540ix Join Date: Nov 2018 Location: Europe iTrader: (0)	120408 and 123432 after spark plugs change/engine cleanup Hi guys, I have stage 3 car on BM3 custom tune (pure 800, dp, chargepipe, wmi, BMS CAI, TU HPFP) and had spark plugs changed for the supra ones and also the engine and fuel injectors cleaned for carbon deposits. The cleaning guys gave me some additive to put in 1 fuel tank to finish it. Of course me being me I went to test the car and low and behold it was slower . Made logs which indicate more pulled timings down low (same top-up, but more pulls down low across more cylinders). At the end of the drive, I got drivetrain malufunction and reduced power. I checked the codes and among the ones i know of, I found 2 key ones: Engine (DME) 123432 Electric Wastegate, Stop Learning: Stop position (weastegate closed) outside tolerance Engine (DME) 120408 Change pressure control, shutdown: pressure build-locked My question is - can these be tied to the spark plugs change or the engine cleanup? I found thread here that mentioned a suggestion which solved their problem and they also had spark plugs changed: "The vacuum lines to the pressure converter were installed backwards" -> can this be it? THANKS!
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04-30-2020, 10:50 AM	#3
eksigned Lieutenant 139 Rep 467 Posts Drives: 4er Join Date: Oct 2011 Location: WA iTrader: (0)	what was the part number on the supra plugs? NGK 94201 is the plug correct for the B58 gen 1.
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04-30-2020, 11:12 AM	#4
luke1990 Second Lieutenant 133 Rep 296 Posts Drives: G30 540ix Join Date: Nov 2018 Location: Europe iTrader: (0)	Hey guys -> its these plugs part#: 12122455258. It is no questions if you can run them - I know people can - many do. Question is what went wrong in my case
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04-30-2020, 01:46 PM	#6
G.Newt Major 810 Rep 1,454 Posts Drives: CT4-V Blackwing 6MT Join Date: Feb 2017 Location: CO -> TX iTrader: (0)	https://www.bimmerforums.com/forum/s...-2013-BMW-328i
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07-15-2021, 07:55 AM	#10
T_H_O_M_A_S Second Lieutenant 188 Rep 282 Posts Drives: M140i Join Date: Mar 2019 Location: Belgium iTrader: (0)	why the change to tu plugs ?? oem's are just fine , like many threads in this section , they change plugs and after a while they ran into codes or other problems __________________ M140i DP , OPF delete , MHD stg2 93oct , xhp stg3
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03-12-2024, 09:56 PM	#11
alrifaieh Registered 0 Rep 1 Posts Drives: 2016 bmw 340i Join Date: Mar 2024 Location: ontario iTrader: (0)	Did u ever figure it out
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04-06-2024, 06:31 PM	#12
viktorbaffil Registered 0 Rep 3 Posts Drives: BMW X6 Join Date: Mar 2024 Location: Miami FL iTrader: (0)	Hey guys My 2015 bmw x6 is having exactly the same error codes as some of you here. The screen shows the drivetrain malfunction Note that the spark plugs were replaced 4 months ago. Can anyone explain how it was to fix it? Did you take it to a dealer? And how much it was? Any info will be appreciated 123401 electric wastegate, learning stop: malfunction during catalyc converter heating 123432 electric wastegate, learning stop: stop position (wastegate closed) outside valid range 120408 chargin pressure control, deactivation: pressure build-up blocked Last edited by viktorbaffil; 04-06-2024 at 06:37 PM..
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04-09-2024, 05:10 AM	#14
Beast.58 Registered 0 Rep 3 Posts Drives: 2019 BMW 540i Join Date: Apr 2024 Location: California iTrader: (0)	Did you guys w this issue unplug your battery when changing the plugs?
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04-11-2024, 03:13 AM	#15
Fast_Rabbi Private 9 Rep 50 Posts Drives: M140ix Join Date: Aug 2022 Location: Belgium iTrader: (0)	That doesn't change anything to unplug the battery for a sparkplugs change.
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