Diagnosis of LAMBDA SENSORS and replacement - BMW E91 engine N43

DIAGNOSIS of LAMBDA SENSORS and replacement - BMW E91 engine N43
#LAMBDASENSOR #LAMBDAPROBE #2C32 #P2098 #MISFIRE #PRECAT #POSTCAT #DIAGNOSIS #BMWE90 #BMWN43
00:00 Intro
- BMW E91 2008 Touring engine N43B20A
- Random misfires with stady speed?
- Spark plugs, Ignition coils, Injectors are ok and no any leaks in exhaust system
00:48 Diagnose BMW MSD80 DME with INPA and ISTA-D software
- Fault code 2C32 (P2098):
- Lambda probe in front of catalytic converter 2, trimming control
- Diagnosis of lambda sensors and replacement of new ones
- Checking Nernst resistances of heated Lambda probes
- Checking voltages of cold and heated lambda probes
- System test for lambda probes
08:01 Replace all Lambda sensors
- Motor N43 keeps 3 lambda sensors
- 2 pre-cat sensors: 11787569930 and 11787539123
- 1 post-cat sensor: 11787569968
13:07 Did replacing the sensors help?
- Watch this video!
Let’s continue with the next episode! Stay tuned!
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My purpose is to encourage people to do things themselves!
Plus, this is a nice hobby for myself and at the same time I have the opportunity to save a lot of money by doing all the maintenance myself!
I’m not a professional with cars or motorcycles, I just want to learn how to do things myself.
If you do this service yourself, always check the correct instructions in the official service manuals. This is just my way of doing it!
Jani Voutilainen
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[@mr.somebody6368]

After lambda replacement make sure to replace all of the spark plugs. They may be damaged or dirty.

[@alimzia1]

I don't understand your remark around the @07:42 mark. Stratified charge after raising engine RPM in idle is the correct response isn't it? So what is wrong here? Is it possible to check stratified charge functionality of the engine in Idle?

[@aanrey]

Hello! Do you remember after replacing lambda probes if stratified charged turned on when acc. pedal was pressed or it was related to NOX problem Thanks 7:40

[@JaniVoutilainen]

I think that's just normal and it is not problem. For example, at idle, when the throttle is given for a moment, the engine enters to stratified mode.

[@lacuevadeanuar]

I have changed NOX sensor, ignition coils, spark plugs but I still get the 30EA code, what else could it be? 30C1 too Car feels amazing, only at low revs (below 1k rpm) hesitates if I dont apply throttle and yellow check engine light comes up on the display after a couple of minutes (not on the dash), if I restart the car it disappears.

[@JaniVoutilainen]

30EA nitric oxide catalytic converter, sulphurized Read this: bimmerprofs.com/30ea-nitric-oxide-catalytic-converter-sulphurized/ and watch my youtube video: kzbin.info/www/bejne/qnvcpZR4h711rNk Especially after Nox sensor replacement, did you: 1. encoded new Nox sensor to the car with Ista-D 2. All error messages - erased 3. Desulphation session of the NOx converter completed 4. engine - re-adapted If you have not performed those steps after replacing the NOx sensor; I recommend to do it as quickly as possible before the NOx converter is damaged. Hope you can solve the problem!

[@user-cn8tc2lr1c]

Are the two pre and post sensors the same? Or do I have to get the exact sensors for pre and post?

[@JaniVoutilainen]

Those three sensors are with different lenghts and they have different part numbers. Stay with originals 👍

[@bigdeal87]

Thanks always best videos for N43! So the real issue was the valve cover? I sometimes have a misfire when drive at 50 km/h with low rpm and steady low gas. Did you change the lambda on hot exhaust?

[@JaniVoutilainen]

Thanks! This problem leads to Nox system, stay tuned! The exhaust was almost cold when I replaced the Lambda sensors.

[@bigdeal87]

@@JaniVoutilainen So the valve cover stll didnt fixed it ? Can you maybe show how the old breather valve looks like and if its possible to open and close it ? I found an repair membran but but bot 100% shure if its possible to close the cap after opening..

[@kitarobenz353]

Hi, can you please tell me where you can see the table of acceptable values of engine parameters, for example, desulfation or lambda sensors readings? Thank you

[@JaniVoutilainen]

I recommend reading the dedicated bimmerprofs web pages. For example bimmerprofs.com/misfires-lambda-probes/

[@kitarobenz353]

@@JaniVoutilainen Danke

[@kitarobenz353]

Hello Yani, at 5:22 minutes when you press F1, it appears "Error ecu conditions not correct or request sequence error". What is the reason? How to fix it? Danke

[@claudiotavares3369]

Hi, nice videos👍. I have a diesel 330xd touring 2006 and the engine light on😒, and a leak of power about 1000rpm to 2000rpm😒. About 2 weeks I take the car to bmw diagnose the problem, the problem was dpf stuck😔. The mechanic in bmw said to took the car to clean the dpf in a guy that they recommended to clean dpf stuck. The guy that clean the dpf said that in the diagnostic also give the air mass metter. He said if the engine light comes again😳 to go and make a diagnose but probably were because of air mass metter. Well the problem know it's ccid-31 emission gazes. I have changed the air mass metter and the error code is still there.😒 Some one with same problem, and some one can tell what is the cause? I think its the o2 sensor🤔

[@kevcat8655]

Thanks for the upload!!! Is the post-cat sensor the NOX sensor?

[@JaniVoutilainen]

Hi! It is not. These are lambda sensors for CO cats. 2 for before cat and 1 after cat. Nox sensor is behind Nox catalytic converter. Nox sensor and converter locations is about middle of exhaust system... My problem will lead to Nox system... Stay tuned! 👍

[@kevcat8655]

@@JaniVoutilainen I can't tell you how much of a perfect time thi video has come! Thank you, N43 Doctor!

[@JaniVoutilainen]

Great when the video is helpful! I'm just an ordinary guy who learns N43 engine life of the soul! 😉

[@garydeasy]

Possibly a silly comment , but is the NOX sensor different to lambda sensors , and if so where is the NOX sensor located?

[@kevcat8655]

I'll copy paste Jani's answer to the same questions... Yes it's different. The sensors in the video are lambda sensors for CO cats. 2 for before cat and 1 after cat. Nox sensor is behind Nox catalytic converter. Nox sensor and converter locations is about middle of exhaust system... Here's a link to a diagram of the N43 exhaust system where you will see all the sensors etc bmwfans.info/parts-catalog/E90/Europe/318i-N43/browse/exhaust_system/lambda_probe_fixings/

[@akisaisa6360]

Loistavia BMW korjausvideoita! Saitko tuon vikakoodin 2C32 pois? Korjaantuuko suuttimien vaihdolla? Itellä samaa vikakoodia heittelee silloin tällöin ja tyhjäkäynti täristää kylmänä.

[@JaniVoutilainen]

Sain ongelman ratkaistua. Tsekkaa video kzbin.info/www/bejne/ipSzk2mOfc9-sLs

[@_J20_]

What tool did you use for oxygen sensor? Im gonna DIY this 😁

[@JaniVoutilainen]

Like this: www.wiltec.de/lambda-sensor-tool-kit.html And this: www.biltema.fi/en-fi/car---mc/car-tools/engine-tools/lambda-tools/lambda-spanner-2000040235 Good luck 👍

[@sulyme1754]

What are the length of 2 pre-cat sensors: 11787569930 and 11787539123? I think one is short other is long.

[@trickshottingreplay557]

The 1st sensor is 21,65’’, the 2nd is 28,34’’, the 3rd is 18,89’’

[@vassilisvot]

I have three error codes...the number of the codes are 2C2D, 2C3D, 2C7F ...i have had change the lamda sensor at Bank 1 pre cat side with new one ànd still have those error codes again...what to do next

[@Aidziokanalas]

Did you resolve the issue?

[@vassilisvot]

@@Aidziokanalas no i'm not...maybe will be the DME ...so i will clear it and load again the software

[@rolzss]

This is BUG in MSD80 software. N43 have only 2 wide bands and 1x narow band, second narrow band is mirrored from 1st. You have error on 2nd narrow band. This happens cuz software jumps into N53 code area - BMW BUG. You have defective NOX sensor or emulator.

[@TheDarkkus]

You are german? :D You had a lifting platform?

[@JaniVoutilainen]

Sorry, I live in Finland and do not have lifting platform! 😉