Rough idle and car shaking.

Seanjohn004 · 04-29-2019, 09:10 PM

Hello all. I have a 2011 335i which recently started to have a rough idle and shake while sitting. Sometimes it feels like the car is going to shut off but it doesn't.
Some things about the car

86888 miles
PPK tune
Upgraded charge pipe and intercooler
Spark plugs and coil packs just changed last week, plugs torqued to spec (Bosch)
Maf replaced yesterday
Cleaned both map sensors with CRC
Chevon techron injector cleaner added last week

Car was running this way before tune up. Figured it would help but it didnt. Rpms also bounce up and down a little. In reverse it stumbles as if its jerking and while the wheel is turned feels as if its about to die. These are the codes im seeing. Thank you.

Monster900 · 04-29-2019, 09:37 PM

Try to reset ECU and adaptations inc. throttle one.

Seanjohn004 · 04-29-2019, 09:47 PM

Quote:

Originally Posted by Monster900

Try to reset ECU and adaptations inc. throttle one.

Thank you! Will try that.

crashoverride · 04-30-2019, 11:59 PM

Any luck I might be facing same issue

Seanjohn004 · 05-02-2019, 08:25 PM

No luck. Took the car to the dealer. They ran a smoke test. Smoke was coming from the aftermarket charge pipe and intercooler. They put all the stock parts back and no leaks but they say the crankcase pressure is better but not up to spec.
Called bmw and they said either faulty valve cover or bad cylinder head. At this point i just want the car back and I'll fix the other shit myself smh. Car has done nothing but cost me money. My Toyota is laughing at me.

macheff03 · 05-02-2019, 09:10 PM

Quote:

Originally Posted by Seanjohn004

No luck. Took the car to the dealer. They ran a smoke test. Smoke was coming from the aftermarket charge pipe and intercooler. They put all the stock parts back and no leaks but they say the crankcase pressure is better but not up to spec.
Called bmw and they said either faulty valve cover or bad cylinder head. At this point i just want the car back and I'll fix the other shit myself smh. Car has done nothing but cost me money. My Toyota is laughing at me.

Welcome to BMW ownership! Nonetheless I would never trade it...

6ixSpd · 05-03-2019, 12:04 AM

Quote:

Originally Posted by macheff03

Welcome to BMW ownership!

*335i ownership.

Seanjohn004 · 05-03-2019, 08:17 AM

Lol may tackle it myself.

924er · 05-03-2019, 09:20 AM

Quote:

Originally Posted by 6ixSpd

*335i ownership.

oh don't be salty, all BMWs are relatively high maintenance, more so the 335i for sure but the 328i aint no Toyota.

My past 2 BMWs were NA motors (e92, e46), and they had their fair share of problems such as cooling, gaskets, misfires etc and even my 328i GM tranny crapped out at 50k so...

6ixSpd · 05-03-2019, 09:24 AM

No salt. Just facts, and I've had all 3 iterations of the motors (N/A, turbo, and the S65) in this platform aside from the diesel.

:

type-dRew · 05-03-2019, 12:11 PM

These cars are dirt cheap, and their performance is nuts for the money.

Repair issues are just the n54s way of weeding out the weak.

macheff03 · 05-03-2019, 01:40 PM

Quote:

Originally Posted by 924er

oh don't be salty, all BMWs are relatively high maintenance, more so the 335i for sure but the 328i aint no Toyota.

My past 2 BMWs were NA motors (e92, e46), and they had their fair share of problems such as cooling, gaskets, misfires etc and even my 328i GM tranny crapped out at 50k so...

They all need something bmw’ish done

Quote:

Originally Posted by type-dRew

These cars are dirt cheap, and their performance is nuts for the money.

Repair issues are just the n54s way of weeding out the weak.

Absolutely, until they need repairs

But really, they are and high quality too

Tambohamilton · 05-03-2019, 02:07 PM

Looks to me like a wiring fault in the maf and intake air temp wires... It's definitely going to run like crap if the ECU doesn't know how much air is going in, and at what temp. I'd start by clearing all faults and seeing what comes back...if the maf and intake temp codes return quickly, I think you need to be checking those parts and the connectors and wires leading to them. Once you figured out what's going on there, then you can turn your attention to any other codes, but I think that'll get you running a lot better to begin with. Good luck!

Seanjohn004 · 05-03-2019, 11:06 PM

Quote:

Originally Posted by Tambohamilton

Looks to me like a wiring fault in the maf and intake air temp wires... It's definitely going to run like crap if the ECU doesn't know how much air is going in, and at what temp. I'd start by clearing all faults and seeing what comes back...if the maf and intake temp codes return quickly, I think you need to be checking those parts and the connectors and wires leading to them. Once you figured out what's going on there, then you can turn your attention to any other codes, but I think that'll get you running a lot better to begin with. Good luck!

Thanks, will take a look into the wires. Sucks because i took the car to a few indys and they said they didnt notice any prolems. I did though. Seems like the hardest part is finding someone who can actually diagnose an issue with the car. Is what it is. Just helping me get more comfortable and motivated to work on the car myself. Dealership prices are insane.
Atleast at the dealership they replaced my FRM module and updated software for everything else in the car. Wasnt expecting that. Been wanting this car for a long time so im gonna try my best to enjoy it and work on her myself.
Thanks for the replies yall. Hopefully one day i can get the PS2 installed.

04-29-2019, 09:10 PM	#1
Seanjohn004 New Member 3 Rep 27 Posts Drives: 2011 335i coupe Join Date: Aug 2018 Location: New jersey iTrader: (0)	Rough idle and car shaking. Hello all. I have a 2011 335i which recently started to have a rough idle and shake while sitting. Sometimes it feels like the car is going to shut off but it doesn't. Some things about the car 86888 miles PPK tune Upgraded charge pipe and intercooler Spark plugs and coil packs just changed last week, plugs torqued to spec (Bosch) Maf replaced yesterday Cleaned both map sensors with CRC Chevon techron injector cleaner added last week Car was running this way before tune up. Figured it would help but it didnt. Rpms also bounce up and down a little. In reverse it stumbles as if its jerking and while the wheel is turned feels as if its about to die. These are the codes im seeing. Thank you. Attached Images
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04-29-2019, 09:37 PM	#2
Monster900 Zeed 17 Rep 561 Posts Drives: E92 335i Join Date: Nov 2009 Location: Detroit, MI iTrader: (0)	Try to reset ECU and adaptations inc. throttle one.
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04-30-2019, 11:59 PM	#4
crashoverride Lieutenant 178 Rep 582 Posts Drives: na Join Date: Jul 2006 Location: na iTrader: (0)	Any luck I might be facing same issue
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05-02-2019, 08:25 PM	#5
Seanjohn004 New Member 3 Rep 27 Posts Drives: 2011 335i coupe Join Date: Aug 2018 Location: New jersey iTrader: (0)	No luck. Took the car to the dealer. They ran a smoke test. Smoke was coming from the aftermarket charge pipe and intercooler. They put all the stock parts back and no leaks but they say the crankcase pressure is better but not up to spec. Called bmw and they said either faulty valve cover or bad cylinder head. At this point i just want the car back and I'll fix the other shit myself smh. Car has done nothing but cost me money. My Toyota is laughing at me.
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05-03-2019, 08:17 AM	#8
Seanjohn004 New Member 3 Rep 27 Posts Drives: 2011 335i coupe Join Date: Aug 2018 Location: New jersey iTrader: (0)	Lol may tackle it myself.
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05-03-2019, 09:24 AM	#10
6ixSpd Save the manuals! 6028 Rep 6,754 Posts Drives: '16 M3, '23 718 Spyder Join Date: Feb 2016 Location: 416 iTrader: (4)	No salt. Just facts, and I've had all 3 iterations of the motors (N/A, turbo, and the S65) in this platform aside from the diesel. : __________________ '16 M3 \| '23 718 Spyder Past: E92 M3, F87 M2, E39 M5, etc
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05-03-2019, 12:11 PM	#11
type-dRew Major 641 Rep 1,245 Posts Drives: 2009 335i xDrive Join Date: Feb 2019 Location: Newport MI iTrader: (0)	These cars are dirt cheap, and their performance is nuts for the money. Repair issues are just the n54s way of weeding out the weak. __________________ 2009 335i xDrive AT / 177k+ miles PSP 750ic / Fuel-It! Stage 1 / BMS CP / Sutphin Tuning / RFP E50 11.61 @ 117.5 New setup; Covid 19Ts on RFP 93 + ARM inlets, dp, VTT cp and PSP outlets
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05-03-2019, 02:07 PM	#13
Tambohamilton Brigadier General 3061 Rep 3,915 Posts Drives: E91 330d Join Date: Apr 2019 Location: Herefordshire iTrader: (0)	Looks to me like a wiring fault in the maf and intake air temp wires... It's definitely going to run like crap if the ECU doesn't know how much air is going in, and at what temp. I'd start by clearing all faults and seeing what comes back...if the maf and intake temp codes return quickly, I think you need to be checking those parts and the connectors and wires leading to them. Once you figured out what's going on there, then you can turn your attention to any other codes, but I think that'll get you running a lot better to begin with. Good luck!
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