Mid throttle stutter/hesitation

cialz · 06-01-2014, 09:33 PM

Just noticed when I give it gas to get on the freeway the car (335 07 74k) kind of stutters/hesitates. Feels kind of like when u run over those small speed bumps that are made of thicker painted lines. Linda like the road has bumps in it. Seems to be happening not during a shift but in gear. No check engine light or anything.

I did a search and can't come up with anything since I'm not sure what to search for since the car doesn't stop it's still going.

It was doing it slightly around 40 to 45 mph with 2500 rpm.

When I gun it it feels normal. Wouldn't plugs cool and injectors be more of an issue during wot?

I have the alpina tranny flash and walnut blast about a month ago.

Thanks

Ingeniator · 06-01-2014, 09:38 PM

Small misfires. Either wait for a code or try to lug it and throw a code.

cialz · 06-01-2014, 09:39 PM

Quote:

Originally Posted by Ingeniator

Small misfires. Either wait for a code or try to lug it and throw a code.

Not sure what lugging it means. Haha sorry. It feels like i just hit a bunch of small bumps in the road

Ingeniator · 06-01-2014, 09:49 PM

Lugging is a diesel term. You want to put a high load on the motor at a low RPM this will strain it. Normally it is not something you want to do. In the right circumstances though it will identify the week plug/coil etc.

cialz · 06-02-2014, 11:48 AM

Quote:

Originally Posted by Ingeniator

Lugging is a diesel term. You want to put a high load on the motor at a low RPM this will strain it. Normally it is not something you want to do. In the right circumstances though it will identify the week plug/coil etc.

oh so how do you do this on an auto? drop the gear and gun it? I did that and also floored it in park.. no codes

Ilma · 06-02-2014, 12:20 PM

Quote:

Originally Posted by cialz

oh so how do you do this on an auto? drop the gear and gun it? I did that and also floored it in park.. no codes

Don't drop a gear....no....use a higher gear to increase the load to the engine.

Say 5th gear WOT at 2K rpm.

cialz · 06-02-2014, 12:23 PM

Quote:

Originally Posted by Ilma

Don't drop a gear....no....use a higher gear to increase the load to the engine.

Say 5th gear WOT at 2K rpm.

yea ill try that later today (at work right now). hard to hold a gear in an auto

oby_1 · 06-02-2014, 12:28 PM

Quote:

Originally Posted by cialz

yea ill try that later today (at work right now). hard to hold a gear in an auto

paddles

gtaccord · 06-02-2014, 02:37 PM

Sounded like you needed a walnut blasting until I saw that you had one. Probably misfires. Have you done plugs recently.

JStang · 06-02-2014, 02:40 PM

Could definitely be spark plugs or a coil on the way out.

cialz · 06-02-2014, 02:46 PM

thanks for the reply guys.. probl is the dash isn't lighting up so I cant tell which cylinder to change out. ill run obd tomorrow to see if there are any codes that are being stored but no light ups on the dash.

cbeers · 06-02-2014, 07:04 PM

Was having a similar problem for quite a while. For me it ended up being a bad ignition coil.

I was only able to pinpoint it after I moved up to a more aggressive tune after installing my FMIC and chargepipe. Made it extremely obvious I was getting misfires. Moved around the ignition coils and the misfires followed. Best bet is trying to get the car to throw a code and tell you which cylinder is causing you the trouble.

cialz · 06-03-2014, 12:50 PM

just read and got these codes:

e194: fault CAN
A3B2: can signal fault terminal
a3aa can signal fault transmission/can ID failure

a0b1: input Pn signal fault from EGS
a0b5 and a118: signature detection error rate

nothing from the ecu for the engine.

cialz · 06-03-2014, 05:10 PM

new tank of gas and the problem is still there. reset the codes (maybe it was during my coding for alpine flash) and nothing else is popping up.

Jhe · 06-03-2014, 08:06 PM

Are you sure, or have you checked for any boost leakage? Had similar symptoms ,and it turned out that those bitchin plastic charge pipes they put on had 3 hairline cracks in it. Put a stainless one on..... car runs like a champ now.

cialz · 06-03-2014, 08:09 PM

Quote:

Originally Posted by Jhe

Are you sure, or have you checked for any boost leakage? Had similar symptoms ,and it turned out that those bitchin plastic charge pipes they put on had 3 hairline cracks in it. Put a stainless one on..... car runs like a champ now.

Wouldn't that throw a code? Also noticed the rpms dip a little and I feel a small pulse on the gas pedal.

Why won't it just throw a code so I don't have to keep on guessing.

Ingeniator · 06-03-2014, 08:10 PM

Have you tried WOT in 5/6th at like 35-40mph yet? You need to load the motor right up at low rpm.

cialz · 06-03-2014, 08:11 PM

Quote:

Originally Posted by Ingeniator

Have you tried WOT in 5/6th at like 35-40mph yet? You need to load the motor right up at low rpm.

Yea I did. It only has the shake around mid throstle. Full or 5/6 and it drives normal.

Ingeniator · 06-03-2014, 08:14 PM

Quote:

Originally Posted by cialz

Yea I did. It only has the shake around mid throstle. Full or 5/6 and it drives normal.

Just to confirm I'm asking have you tried 5th or 6th gear at around 35-40mph I think. You want to be just under 2000rpm. Then hit WOT from there no downshift. This will likely throw a code if it is a coil or plug. If you have done this I'm sorry for re confirming your answer was ambiguous.

cialz · 06-03-2014, 08:16 PM

Quote:

Originally Posted by Ingeniator

Quote:

Originally Posted by cialz

Yea I did. It only has the shake around mid throstle. Full or 5/6 and it drives normal.

Just to confirm I'm asking have you tried 5th or 6th gear at around 35-40mph I think. You want to be just under 2000rpm. Then hit WOT from there no downshift. This will likely throw a code if it is a coil or plug. If you have done this I'm sorry for re confirming your answer was ambiguous.

Yea when I so it it seems to be fine. Only seems to happen when I start up hit 40 mph and around 2500rpm it stutters. Thanks for the reply.

Ingeniator · 06-03-2014, 08:18 PM

What mods do you have? Any way of logging?

cialz · 06-03-2014, 08:22 PM

Quote:

Originally Posted by Ingeniator

What mods do you have? Any way of logging?

Stock tried to log with torque app but can't figure how to get the log out

06-01-2014, 09:33 PM	#1
cialz Second Lieutenant 15 Rep 251 Posts Drives: e93 335i 07 Join Date: Jan 2014 Location: LA, CA iTrader: (0)	Mid throttle stutter/hesitation Just noticed when I give it gas to get on the freeway the car (335 07 74k) kind of stutters/hesitates. Feels kind of like when u run over those small speed bumps that are made of thicker painted lines. Linda like the road has bumps in it. Seems to be happening not during a shift but in gear. No check engine light or anything. I did a search and can't come up with anything since I'm not sure what to search for since the car doesn't stop it's still going. It was doing it slightly around 40 to 45 mph with 2500 rpm. When I gun it it feels normal. Wouldn't plugs cool and injectors be more of an issue during wot? I have the alpina tranny flash and walnut blast about a month ago. Thanks
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06-01-2014, 09:38 PM	#2
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	Small misfires. Either wait for a code or try to lug it and throw a code. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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06-01-2014, 09:49 PM	#4
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	Lugging is a diesel term. You want to put a high load on the motor at a low RPM this will strain it. Normally it is not something you want to do. In the right circumstances though it will identify the week plug/coil etc. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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06-02-2014, 02:37 PM	#9
gtaccord Major 56 Rep 1,464 Posts Drives: 2009 BMW 335xi Join Date: Feb 2012 Location: Maryland iTrader: (7) Garage List 2009 BMW 335i xdrive [0.00]	Sounded like you needed a walnut blasting until I saw that you had one. Probably misfires. Have you done plugs recently.
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06-02-2014, 02:40 PM	#10
JStang Brigadier General 562 Rep 3,625 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	Could definitely be spark plugs or a coil on the way out.
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06-02-2014, 02:46 PM	#11
cialz Second Lieutenant 15 Rep 251 Posts Drives: e93 335i 07 Join Date: Jan 2014 Location: LA, CA iTrader: (0)	thanks for the reply guys.. probl is the dash isn't lighting up so I cant tell which cylinder to change out. ill run obd tomorrow to see if there are any codes that are being stored but no light ups on the dash.
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06-02-2014, 07:04 PM	#12
cbeers Private 11 Rep 68 Posts Drives: '16 M235i xDrive Join Date: Jul 2012 Location: Chicago iTrader: (0)	Was having a similar problem for quite a while. For me it ended up being a bad ignition coil. I was only able to pinpoint it after I moved up to a more aggressive tune after installing my FMIC and chargepipe. Made it extremely obvious I was getting misfires. Moved around the ignition coils and the misfires followed. Best bet is trying to get the car to throw a code and tell you which cylinder is causing you the trouble. __________________ \| F22 M235i xDrive \| Mineral Grey \|
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06-03-2014, 12:50 PM	#13
cialz Second Lieutenant 15 Rep 251 Posts Drives: e93 335i 07 Join Date: Jan 2014 Location: LA, CA iTrader: (0)	just read and got these codes: e194: fault CAN A3B2: can signal fault terminal a3aa can signal fault transmission/can ID failure a0b1: input Pn signal fault from EGS a0b5 and a118: signature detection error rate nothing from the ecu for the engine.
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06-03-2014, 05:10 PM	#14
cialz Second Lieutenant 15 Rep 251 Posts Drives: e93 335i 07 Join Date: Jan 2014 Location: LA, CA iTrader: (0)	new tank of gas and the problem is still there. reset the codes (maybe it was during my coding for alpine flash) and nothing else is popping up.
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06-03-2014, 08:06 PM	#15
Jhe JHE 10 Rep 170 Posts Drives: 2010 335i Coupe Join Date: Mar 2012 Location: LA iTrader: (1)	Possibility Are you sure, or have you checked for any boost leakage? Had similar symptoms ,and it turned out that those bitchin plastic charge pipes they put on had 3 hairline cracks in it. Put a stainless one on..... car runs like a champ now.
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06-03-2014, 08:10 PM	#17
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	Have you tried WOT in 5/6th at like 35-40mph yet? You need to load the motor right up at low rpm. __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
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06-03-2014, 08:18 PM	#21
Ingeniator Major 34 Rep 1,093 Posts Drives: 07 335XI(90) 09 135I(82) Join Date: Nov 2013 Location: Fort Mac, Alberta iTrader: (1)	What mods do you have? Any way of logging? __________________ 07 335XI (A008006) 6AT ~94K miles JB4 G5 ISO VSRF DP's 09 135I M (VK80379) 6MT. Race Project car. 1) Install Cobb/piggyback? and Motiv 600 Kit[HTA3076R w/ tial .82] 2) JRZ or Moton suspension. 3) Build high flow intake manifold with multi-port fuel and relocate OFH 4) Build full cage 5) Complete staged twin setup with HTA4205R [w/Tial 1.16] 6) Complete dry sump system
	Appreciate 0 Quote