Custom-tuned g20 complete power loss when rpm too high

sddz6269 · 06-05-2021, 02:17 AM

Hi, I’m having a custom tune by Cary Jordan on bootmod3. Recently, I’ve been faced with a serious problem that once I step on my accelerator pedal too quickly and rpm revs up to 5k rpm, the car would be placed into a complete power loss mode. It could barely move. I could only pull over and restart it again then it’s all ok again.

This problem came not very often but very annoying to me. It has no DTC codes. I’ve replaced my plugs and oil already.

I happened to have the whole process logged. You could see from the latter part that the car could barely move.

https://www.bootmod3.net/log?id=60bb...0b435b76a9c43c

Update:

I finally made it to detect two shadow codes using another BMW specific code reader.
1) 10D000 Combustion engine: torque limitation active
2) 24000B Timeout data EWS

Seems like there's a torque limitation that lets my car shut off the power.

sddz6269 · 06-05-2021, 02:30 AM

I forgot to mention that i also tried stock map and mgflasher stage2 and the problem seemed to be gone.

MWhiteG20 · 06-05-2021, 07:06 AM

Is it a completed map? Problems do come along but can always be fixed by the tuner.

sddz6269 · 06-07-2021, 01:11 AM

Quote:

Originally Posted by MWhiteG20

Is it a completed map? Problems do come along but can always be fixed by the tuner.

Yes, it was actually recently completed. I'm now trying to have Cary get this fixed but he has not seemed to find a solution so I thought it would be good for me to ask here.

MWhiteG20 · 06-07-2021, 12:23 PM

Quote:

Originally Posted by sddz6269

Quote:

Originally Posted by MWhiteG20

Is it a completed map? Problems do come along but can always be fixed by the tuner.

Yes, it was actually recently completed. I'm now trying to have Cary get this fixed but he has not seemed to find a solution so I thought it would be good for me to ask here.

You will probably be resolved soon by Cary. Problems have came up and he is very knowledgeable in tuning anything BMW. He will prob have you set after a couple more revisions. As far as I can see I feel like the AFR, boost pressure, timing, and the throttle angle are off. However I am not a tuner it's just what I am assuming are the problem.

sddz6269 · 06-09-2021, 04:04 AM

Quote:

Originally Posted by MWhiteG20

You will probably be resolved soon by Cary. Problems have came up and he is very knowledgeable in tuning anything BMW. He will prob have you set after a couple more revisions. As far as I can see I feel like the AFR, boost pressure, timing, and the throttle angle are off. However I am not a tuner it's just what I am assuming are the problem.

Thank you!

seanantenbring · 05-13-2023, 05:59 PM

sddz6269 Was this ever resolved? I have the same issue with my car after a custom tune! Was yours resolved by your tuner Cary or something else?

Cheers

g20beam · 05-19-2023, 12:16 AM

I’m currently big turbo setup (IPOS IM450) with Navardi tuning the car

Same problem, boost cut WOT low gear, would be making like 10psi when target is 21.5psi. Traction stutters past 5000rpm, problem persisted for a few revisions but lately it’s been basically fixed

Get Cary to put a TCU limiter delete on it and see if that helps. Traction apparently is a huge problem on this platform.. Just give the tuner time and everything to revise, will be better

Goodluck!

06-05-2021, 02:17 AM	#1
sddz6269 Private 32 Rep 50 Posts Drives: BMW G20 325i Join Date: Dec 2019 Location: Shanghai, China iTrader: (0)	Custom-tuned g20 complete power loss when rpm too high Hi, I’m having a custom tune by Cary Jordan on bootmod3. Recently, I’ve been faced with a serious problem that once I step on my accelerator pedal too quickly and rpm revs up to 5k rpm, the car would be placed into a complete power loss mode. It could barely move. I could only pull over and restart it again then it’s all ok again. This problem came not very often but very annoying to me. It has no DTC codes. I’ve replaced my plugs and oil already. I happened to have the whole process logged. You could see from the latter part that the car could barely move. https://www.bootmod3.net/log?id=60bb...0b435b76a9c43c Update: I finally made it to detect two shadow codes using another BMW specific code reader. 1) 10D000 Combustion engine: torque limitation active 2) 24000B Timeout data EWS Seems like there's a torque limitation that lets my car shut off the power. Last edited by sddz6269; 06-09-2021 at 04:05 AM..
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06-05-2021, 02:30 AM	#2
sddz6269 Private 32 Rep 50 Posts Drives: BMW G20 325i Join Date: Dec 2019 Location: Shanghai, China iTrader: (0)	I forgot to mention that i also tried stock map and mgflasher stage2 and the problem seemed to be gone.
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06-05-2021, 07:06 AM	#3
MWhiteG20 Enlisted Member 14 Rep 49 Posts Drives: BMW Z4M40i Join Date: May 2020 Location: USA iTrader: (0)	Is it a completed map? Problems do come along but can always be fixed by the tuner.
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05-13-2023, 05:59 PM	#7
seanantenbring Enlisted Member 9 Rep 36 Posts Drives: G21 M340i Join Date: Feb 2017 Location: Shropshire UK iTrader: (0)	sddz6269 Was this ever resolved? I have the same issue with my car after a custom tune! Was yours resolved by your tuner Cary or something else? Cheers
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05-19-2023, 12:16 AM	#8
g20beam First Lieutenant 476 Rep 320 Posts Drives: G20 330i M Sport Join Date: Mar 2019 Location: Ontario, Canada iTrader: (0) Garage List 2019 BMW [0.00]	I’m currently big turbo setup (IPOS IM450) with Navardi tuning the car Same problem, boost cut WOT low gear, would be making like 10psi when target is 21.5psi. Traction stutters past 5000rpm, problem persisted for a few revisions but lately it’s been basically fixed Get Cary to put a TCU limiter delete on it and see if that helps. Traction apparently is a huge problem on this platform.. Just give the tuner time and everything to revise, will be better Goodluck!
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