Ecu issue or?

sahanMpower · 01-21-2025, 09:24 PM

Hey guys, mine is supercharged with a straight pipe. I just installed new spark plugs and coils, no DCT tune yet, but I have an SSP clutch. The issues I'm experiencing are: I get a jumpy feeling when I press the gas all the way down in 1st or 2nd gear, and I also get hesitation in acceleration between 5500 and 8000 RPM. Can anyone let me know what the problem might be, or do I need to retune the ECU?"

here is the video!

https://www.youtube.com/shorts/zO1DRtLgkD8
https://www.youtube.com/shorts/d5gJeGKVA6I

t_win · 01-22-2025, 01:21 AM

Do you have an AFR gauge? What's the AFR when the car hesitates to give you power?

sahanMpower · 01-22-2025, 06:27 PM

No i dont

spammysammich · 01-22-2025, 10:38 PM

Who’s tune are you running? You need to be asking them.

sahanMpower · 01-22-2025, 11:03 PM

AA

CamasM3e93 · 01-23-2025, 08:03 AM

Those are the prime wheel-slip situations when supercharged. The car will cut throttle in reaction unless you have the traction control shut off. I’ve had my car stutter like that in severe scenarios when I had the Harrop. Are you on crap tires or still 265s in the rear?

Turn your traction control off (long press of the button next to the gear shifter) and repeat your pulls to test.

If not a wheel slippage response, agree that speaking with your tuner is next step

sahanMpower · 01-24-2025, 10:09 AM

Hey yes the tires size are 265s and I did the TC off and I still get the issue..

Here is the video

https://youtube.com/shorts/xPTKykMLC...gmLwtHe5hADLiz

01-21-2025, 09:24 PM	#1
sahanMpower Private First Class 32 Rep 164 Posts Drives: E92 M3 S/C STAGE 2/ e92 m3 FBO Join Date: Jul 2011 Location: San Clemente, CA iTrader: (0)	Ecu issue or? Hey guys, mine is supercharged with a straight pipe. I just installed new spark plugs and coils, no DCT tune yet, but I have an SSP clutch. The issues I'm experiencing are: I get a jumpy feeling when I press the gas all the way down in 1st or 2nd gear, and I also get hesitation in acceleration between 5500 and 8000 RPM. Can anyone let me know what the problem might be, or do I need to retune the ECU?" here is the video! https://www.youtube.com/shorts/zO1DRtLgkD8 https://www.youtube.com/shorts/d5gJeGKVA6I
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01-22-2025, 01:21 AM	#2
t_win Enlisted Member 24 Rep 44 Posts Drives: e90 M3 Join Date: Dec 2022 Location: WA iTrader: (0)	Do you have an AFR gauge? What's the AFR when the car hesitates to give you power?
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01-22-2025, 06:27 PM	#3
sahanMpower Private First Class 32 Rep 164 Posts Drives: E92 M3 S/C STAGE 2/ e92 m3 FBO Join Date: Jul 2011 Location: San Clemente, CA iTrader: (0)	No i dont
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01-22-2025, 10:38 PM	#4
spammysammich Lieutenant Colonel 3073 Rep 1,799 Posts Drives: 2009 E92 M3 Dakar Yellow II Join Date: Oct 2021 Location: Edmonds, WA iTrader: (0) Garage List 2009 BMW M3 [10.00]	Who’s tune are you running? You need to be asking them. Last edited by spammysammich; 01-22-2025 at 10:38 PM..
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01-22-2025, 11:03 PM	#5
sahanMpower Private First Class 32 Rep 164 Posts Drives: E92 M3 S/C STAGE 2/ e92 m3 FBO Join Date: Jul 2011 Location: San Clemente, CA iTrader: (0)	AA
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01-23-2025, 08:03 AM	#6
CamasM3e93 Friends don't let friends ESS 4799 Rep 1,152 Posts Drives: '11 Lemans Blue 6mt Harrop e90 Join Date: Dec 2020 Location: Camas, WA iTrader: (0) Garage List 2011 E90 M3 [9.00] 2003 Porsche 911 Turbo [9.83] 2019 BMW X5 xDrive40i [0.00] 2013 Mercedes E550 ... [0.00]	Those are the prime wheel-slip situations when supercharged. The car will cut throttle in reaction unless you have the traction control shut off. I’ve had my car stutter like that in severe scenarios when I had the Harrop. Are you on crap tires or still 265s in the rear? Turn your traction control off (long press of the button next to the gear shifter) and repeat your pulls to test. If not a wheel slippage response, agree that speaking with your tuner is next step
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01-24-2025, 10:09 AM	#7
sahanMpower Private First Class 32 Rep 164 Posts Drives: E92 M3 S/C STAGE 2/ e92 m3 FBO Join Date: Jul 2011 Location: San Clemente, CA iTrader: (0)	Hey yes the tires size are 265s and I did the TC off and I still get the issue.. Here is the video https://youtube.com/shorts/xPTKykMLC...gmLwtHe5hADLiz
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