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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N20, N26, B46, B48 Turbo Engine / Drivetrain / Exhaust Modifications > Very jerky when I step on the gas pedal a lot.
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      09-02-2024, 09:44 PM   #1
jun__jun
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Drives: BMW F31 LCI 320i
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Very jerky when I step on the gas pedal a lot.

Hi guys.

My car has drivability problems. Please help.
It can be very jerky when I step on the gas pedal a lot.

Here is some information about my car.
2016 BMW F31 AT
B48 B48B20 EWG
Bootmod3 stage1 map3(93 octane).
Intake and exhaust are in stock condition.
Miles:46000(75000Km)
Miles on the spark plugs:1800miles(3000Km), spark plug:CHAMPION gap is stock

Attached is a log of when the problem occurred.
https://datazap.me/u/junjun/strongly...2&solo=1-29-32

For your information, I have addressed the following defect code, but it has not improved.

Defect code:[118401 mixture control AFR Too lean]
This is the defect code obtained by ISTA. Secondary air was being sucked from the blow-by hose, so the blow-by hose was replaced.
The smoke leak test came back OK and the defect code was resolved. However, the jerkiness was not resolved.

Thanks in advance!
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      09-04-2024, 07:42 PM   #2
jun__jun
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Drives: BMW F31 LCI 320i
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I tried to get a 3rd gear, longer log.
Throttle is closed in the middle, what is happening?

https://datazap.me/u/junjun/loglongd...42-43-45-46-47
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