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      09-09-2022, 07:45 PM   #1
supremexlonly
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Drives: F10 M5 CP
Join Date: Sep 2022
Location: Los Angeles

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Transmission Malfunction while tuned with BM3 and X-HP

Hello! ***CORRECTION DRIVETRAIN MALFUNCTION***

I currently have a 16 CP with 65k that I have been modifying over the last 6 months. The list of mods can be seen below:

Eventuri Intake
Fabworx Downpipes
CSF Charge Coolers
Burger Charge Pipes
RK Diff Mount
KW V3
BM3 Stage 2 91
X-HP Transmission Flash

I have had a handful of times where I have applied 60-100% of throttle and the car would go into limp mode/transmission malfunction. I wanted to get other's insights on this. I have a feeling it may be with the BM3 tune, but am not exactly sure where it stems from. I have all my maintenance up to par, including rod bearings and NGK 97506 gapped at the .022 at 62k miles. As well, I had the fluids for both transmission and differential done last month. If others can provide any experience or corrective action, that would be great! I want to enjoy the extra power and sound of these beasts, but always worrying about the transmission malfunction, it does limit on how hard I can drive. Thanks a bunch!!!

Last edited by supremexlonly; 09-13-2022 at 06:59 PM..
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