BMW M2 Forum - View Single Post - BM3 Multimap Stg 2+ Flexfuel Logs and Discussion

calvin07 · 01-28-2023, 10:44 PM

Hey guys,

So I have ran into a problem, and I am looking to find out what the cause may be. Here are my mods:

Catless Downpipe
Charge pipe
Intercooler
BM3 Flex Fuel Kit

Running E30 on BM3 Stage 2 Multi Map with 93 octane tune

My problem is when going WOT around 5.5K rpm, the engine cuts the power. It feels like someone stepped on the breaks. I have tried this on 3rd and 4th gear and the result is the same. Outside temperature is between 40-45F. I don't get CEL or anything and the car drives normally right after. I can do pulls 80-90% throttle just fine. This is only at WOT. If I am driving 80-90% throttle, it goes normally until redline.

Any ideas what this could be? I am assuming it's the HPFP but I don't know. I don't have any logs at the moment but I can do some logs if it would help.

Thanks.

01-28-2023, 10:44 PM	#96
calvin07 Enlisted Member 20 Rep 30 Posts Drives: 2017 BMW M2 LBB Join Date: Dec 2022 Location: Woodbridge, VA iTrader: (0)	Hey guys, So I have ran into a problem, and I am looking to find out what the cause may be. Here are my mods: Catless Downpipe Charge pipe Intercooler BM3 Flex Fuel Kit Running E30 on BM3 Stage 2 Multi Map with 93 octane tune My problem is when going WOT around 5.5K rpm, the engine cuts the power. It feels like someone stepped on the breaks. I have tried this on 3rd and 4th gear and the result is the same. Outside temperature is between 40-45F. I don't get CEL or anything and the car drives normally right after. I can do pulls 80-90% throttle just fine. This is only at WOT. If I am driving 80-90% throttle, it goes normally until redline. Any ideas what this could be? I am assuming it's the HPFP but I don't know. I don't have any logs at the moment but I can do some logs if it would help. Thanks.
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