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Problem that feels like switching to Sport Mode under Acceleration
| 04-14-2018, 10:40 PM | #1 |
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Problem that feels like switching to Sport Mode under Acceleration
My 2015 6spd 335i has a distinct problem. When the car is under load, it feels like the car stutters and then there is a surge in power. It all happens in about half a second. It feels exactly the way it would feel if you switched the car into Sport mod while accelerating in comfort mode. Sometimes when it happens the CEL will come on for a p00bd .
I just put on a jb+ and Injen intake and the problem has become more severe. Now the stutter feels more forceful and abrupt. I'm thinking about taking the mods off and taking a trip to the dealer, but has anyone experienced this problem? It is worth noting that the problem occurs whether the mods are on or off.
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2015 335i RWD Auto mSport with AFE Valved Axleback, AFE performance Midpipe (with resonator), Injen Intake and JB4 with Bluetooth Connect kit.
VSRF charge pipes, VSRF Intercooler and VSRF Catted Downpipe going on in July. |
| 04-15-2018, 01:20 AM | #2 |
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2JZ-GTE
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You were experiencing this problem before JB4 but now worse? Was the vehicle throwing check engine light codes before as well?
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| 04-15-2018, 01:32 AM | #3 | |
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The car through the same codes and had the same symptoms. It's just more frequent and severe with the mods.
Quote:
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2015 335i RWD Auto mSport with AFE Valved Axleback, AFE performance Midpipe (with resonator), Injen Intake and JB4 with Bluetooth Connect kit.
VSRF charge pipes, VSRF Intercooler and VSRF Catted Downpipe going on in July. |
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| 04-15-2018, 01:35 AM | #4 | |
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| 04-15-2018, 12:22 PM | #5 |
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2020 Z4 M40i - 2022 M4C Convt
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Drives: 2020 Z4 M40i - 2022 M4C Convrt
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Garage List 1965 COBRA (FFR rep ... [8.57]
2023 Jeep Wrangler ... [9.50] 2009 Yamaha V-Star [0.00] Cars 2-BMW, 2-FORD, ... [0.00] 2023 Ford Expeditio ... [0.00] 2020 Z4 M40i [10.00] 2022 BMW M4C [7.25] 1998 FORD Ranger 4X4 [0.00] |
Agree have BMW trouble shoot the car in stock form. You mod a problem you only make it worse.
FWIW intakes can cause drive-ability issues. Cars are very sensitive to sensor placement & intake track diameter where the sensor is.
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Dravit Gray, Black Leather, Moonlight Roof, Red Calipers  2022 M4C - 2020 Z4 M40i - 2023 FORD Expedition XLT Max 4X4 400BHP - 2009 V-Star - 1998 Ranger 4X4 5MT - 1965 Cobra (R) 5MT - 2023 Jeep Wrangler Sport S 6MT |
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