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BMW S63B44O0 header swap from S63B44T0, Oxygen Sensor problem
10-24-2017, 12:36 AM
Post: #1
BMW S63B44O0 header swap from S63B44T0, Oxygen Sensor problem
Dear friends,

On BMW X5M engine S63B44O0 there is exhaust header like this:

[Image: p90045732_image-1600x1200.jpg]

We replaced it with header from BMW M5 F10 engine S63B44T0, headers like this:

[Image: b6ac51020d7c.jpg]

As You can see X5M headers are pulsing cyl 1-4 in one turbocharger so left oxygen sensor after turbo reads from 1-4 cyl and right oxygen sensor reads from 5-8 cyl.

In M5 F10 the exhaust header is divided, so there is better pulse flow to turbocharger but problem is that now left sensor reads o2 from cyl 1,6,7,4 and right reads from cyl 5,2,3,8.

Remap with datalogs before was no problem, now after few days or week ecu gives error "Oxygen sensor left before cat mixed up sides" and same for right.

PP Performance and some others have done it with no codes or limp mode.

Maybe someone have experience in this or any ideas?
Thanks
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10-25-2017, 06:23 AM
Post: #2
RE: BMW S63B44O0 header swap from S63B44T0, Oxygen Sensor problem
Anyone?
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10-26-2017, 05:14 AM
Post: #3
RE: BMW S63B44O0 header swap from S63B44T0, Oxygen Sensor problem
Recognition interchanged Lambda-Probes Before KAT
Codeword for DLSUV

WinOLS + DAMOS Importer+DAMOS Translator
Stage 1,2,3, DPF+EGR+SCR+FLAPS+TVA+CAT (all off)
VAG ME7 LC+ALS+NLS+2step, VAG MED9.1 LC+ALS+NLS, EDC17 LC+HARD CUT
POPS & BANGS (Schubabschaltung, Crackles)
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 Thanks given by: janisk
11-06-2017, 10:33 AM
Post: #4
RE: BMW S63B44O0 header swap from S63B44T0, Oxygen Sensor problem
(10-26-2017 05:14 AM)telucu17 Wrote:  Recognition interchanged Lambda-Probes Before KAT
Codeword for DLSUV

Hi, thank You for Your reply.

Of course i tried exchanging them place before KAT, than after KAT and then both. Its always same error about mixed sides.

Any ideas?

Thank You.
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11-06-2017, 10:35 AM
Post: #5
RE: BMW S63B44O0 header swap from S63B44T0, Oxygen Sensor problem
(11-06-2017 10:33 AM)janisk Wrote:  
(10-26-2017 05:14 AM)telucu17 Wrote:  Recognition interchanged Lambda-Probes Before KAT
Codeword for DLSUV

Hi, thank You for Your reply.

Of course i tried exchanging them place before KAT, than after KAT and then both. Its always same error about mixed sides.

Any ideas?

Thank You.

need to disable this function in your software bro

WinOLS + DAMOS Importer+DAMOS Translator
Stage 1,2,3, DPF+EGR+SCR+FLAPS+TVA+CAT (all off)
VAG ME7 LC+ALS+NLS+2step, VAG MED9.1 LC+ALS+NLS, EDC17 LC+HARD CUT
POPS & BANGS (Schubabschaltung, Crackles)
Visit this user's website Find all posts by this user
Quote this message in a reply
 Thanks given by: janisk
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