Keep getting same codes w/ procede.

Highflyr · 09-01-2009, 12:47 PM

I keep getting these same codes. Always at the end of 3rd gear just before shift. Afterwards CEL comes on and car runs like shit. I actually have a datalog of one event which I'll post later if need be. I'm running a Rev. 1 V3 on stage 1 nondoomsday new maps and firmware (7-29) and DCI.

joec500 · 09-01-2009, 01:05 PM

Fuel Pump? or Boost Leak? Check Intercooler hoses and your charge pipe....Maybe even just change sparkplugs to remove that variable

Good Luck!

Mr. 5 · 09-01-2009, 01:09 PM

You need a fuel pump man! Sorry.

black335i · 09-01-2009, 01:12 PM

boost leak or fuel pump

Ilma · 09-01-2009, 02:17 PM

I get misfire codes on stage 1 procede if I shift too close to redline.

Just cylinders 5 & 6 though - but goes directly into limp mode.

I just bumped my upshift softening from 5 to 10, as I read that helped some members avoid the misfires....but I haven't tried shifting out to redline yet.

Wonder how much the fuel pump is contributing to this problem? It's kind of frustrating to get the jump on someone and then immediately hit limp mode on the gear shift.

OpenFlash · 09-01-2009, 02:46 PM

If you guys are getting misfire near readline, the first thing you should do is reduce user torque by say 20% to see if it goes away. If it does, then it's time to change spark plugs. If it doesn't, then we are probably looking at a fuel pump issue.

Shiv

Highflyr · 09-01-2009, 05:17 PM

I'm pretty sure the misfire codes are being thrown after the car goes into limp mode. I'll have the techs dig deeper next time i throw the codes. BTW my car was scanned today at a BMW Dealership with the procede still installed. ISIS was none the wiser.

OpenFlash · 09-01-2009, 05:21 PM

Quote:

Originally Posted by Highflyr

I'm pretty sure the misfire codes are being thrown after the car goes into limp mode. I'll have the techs dig deeper next time i throw the codes. BTW my car was scanned today at a BMW Dealership with the procede still installed. ISIS was none the wiser.

I'm pretty sure that the limp is being caused by the misfire. I've seen this before with 6ats as they put more stress on the ignition system during the upshift process. I'd bet that either reducing the boost or replacing the spark plugs will fix the problem.

Highflyr · 09-01-2009, 05:36 PM

well since I don't want to loose boost I guess I'll throw in some plugs and see what happens.

Highflyr · 09-04-2009, 08:52 AM

****UPDATE****

So I put in a HPFP and haven't had a problem since. Took it out last night and red lined about 20 times in 1st 2nd and 3rd.

Sniz · 09-04-2009, 09:49 AM

great man!!!

hows it feel?

I was concerned

Ilma · 09-04-2009, 09:54 AM

Quote:

Originally Posted by Highflyr

****UPDATE****

So I put in a HPFP and haven't had a problem since. Took it out last night and red lined about 20 times in 1st 2nd and 3rd.

Yah...I was suspecting it's the fuel pump.

That's great to hear!

So now I know how to get them to replace it - lol.
Invoke the misfire codes and take it in.

Highflyr · 09-04-2009, 08:00 PM

Quote:

Originally Posted by Sniz

great man!!!

hows it feel?

I was concerned

Running much better now, but not pulling as hard.

Quote:

Originally Posted by Ilma

Yah...I was suspecting it's the fuel pump.

That's great to hear!

So now I know how to get them to replace it - lol.
Invoke the misfire codes and take it in.

I don't know if that would work. I pulled a few strings to get my pump replaced.

Ilma · 09-04-2009, 11:02 PM

Quote:

Originally Posted by Highflyr

I don't know if that would work. I pulled a few strings to get my pump replaced.

Do share.....the dealers seem reluctant to swap them just for long cranks.

You seem to need the fuel pump code!

But I think you and Shiv may be right - some marginal pumps may be contributing to misfires.

Highflyr · 09-04-2009, 11:03 PM

I gave the technician cookies. No lie

He also found the pump was putting out pressure below spec. I think that was the winner. Cookies were to get him to do it that day instead of waiting till tuesday

Highflyr · 09-14-2009, 06:58 PM

So I replaced the spark plugs on Sat. Car felt a little bit stronger, but not by much. Sun. Got the same CEL and while shifting from 3rd to 4th again. This time though I shifted at 6500. Scanned it today and got misfire in cylinder 6 and low charge air pressure codes. Do I need to modify ignition advance or some other perameter? This is a data log from when the CEL came on a week or so ago. I also seem to be loosing boost but have no leaks

??

09-01-2009, 12:47 PM	#1
Highflyr Captain 49 Rep 704 Posts Drives: 08 335i E90 Join Date: Feb 2009 Location: Ellicott City, MD iTrader: (3)	Keep getting same codes w/ procede. I keep getting these same codes. Always at the end of 3rd gear just before shift. Afterwards CEL comes on and car runs like shit. I actually have a datalog of one event which I'll post later if need be. I'm running a Rev. 1 V3 on stage 1 nondoomsday new maps and firmware (7-29) and DCI. Attached Images __________________ Join the BMW CCA!!!!!!
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09-01-2009, 01:05 PM	#2
joec500 Brigadier General 125 Rep 3,004 Posts Drives: it has 4 wheels Join Date: Jul 2008 Location: San Francisco iTrader: (10)	Fuel Pump? or Boost Leak? Check Intercooler hoses and your charge pipe....Maybe even just change sparkplugs to remove that variable Good Luck!
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09-01-2009, 01:09 PM	#3
Mr. 5 Modder Raider 753 Rep 8,633 Posts Drives: M3 Join Date: Apr 2007 Location: Surf City, HB iTrader: (31) Garage List 2007 e90 335i [8.00]	You need a fuel pump man! Sorry. __________________ e36 M3 Coupe, e36 325i Sedan e90 335i--SOLD Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
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09-01-2009, 01:12 PM	#4
black335i Captain 193 Rep 725 Posts Drives: M 4 Join Date: Mar 2008 Location: tx iTrader: (2)	boost leak or fuel pump
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09-01-2009, 02:17 PM	#5
Ilma Colonel 184 Rep 2,841 Posts Drives: 2008 135i Join Date: Nov 2008 Location: Mississauga iTrader: (0)	I get misfire codes on stage 1 procede if I shift too close to redline. Just cylinders 5 & 6 though - but goes directly into limp mode. I just bumped my upshift softening from 5 to 10, as I read that helped some members avoid the misfires....but I haven't tried shifting out to redline yet. Wonder how much the fuel pump is contributing to this problem? It's kind of frustrating to get the jump on someone and then immediately hit limp mode on the gear shift.
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09-01-2009, 02:46 PM	#6
OpenFlash 1737 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	If you guys are getting misfire near readline, the first thing you should do is reduce user torque by say 20% to see if it goes away. If it does, then it's time to change spark plugs. If it doesn't, then we are probably looking at a fuel pump issue. Shiv
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09-01-2009, 05:17 PM	#7
Highflyr Captain 49 Rep 704 Posts Drives: 08 335i E90 Join Date: Feb 2009 Location: Ellicott City, MD iTrader: (3)	I'm pretty sure the misfire codes are being thrown after the car goes into limp mode. I'll have the techs dig deeper next time i throw the codes. BTW my car was scanned today at a BMW Dealership with the procede still installed. ISIS was none the wiser. __________________ Join the BMW CCA!!!!!!
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09-01-2009, 05:36 PM	#9
Highflyr Captain 49 Rep 704 Posts Drives: 08 335i E90 Join Date: Feb 2009 Location: Ellicott City, MD iTrader: (3)	well since I don't want to loose boost I guess I'll throw in some plugs and see what happens. __________________ Join the BMW CCA!!!!!!
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09-04-2009, 08:52 AM	#10
Highflyr Captain 49 Rep 704 Posts Drives: 08 335i E90 Join Date: Feb 2009 Location: Ellicott City, MD iTrader: (3)	**UPDATE** So I put in a HPFP and haven't had a problem since. Took it out last night and red lined about 20 times in 1st 2nd and 3rd. __________________ Join the BMW CCA!!!!!!
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09-04-2009, 09:49 AM	#11
Sniz Lieutenant General 656 Rep 10,587 Posts Drives: e92 335 - gone // e36 M3 turbo Join Date: Mar 2007 Location: Ellicott City, MD iTrader: (1)	great man!!! hows it feel? I was concerned __________________
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09-04-2009, 11:03 PM	#15
Highflyr Captain 49 Rep 704 Posts Drives: 08 335i E90 Join Date: Feb 2009 Location: Ellicott City, MD iTrader: (3)	I gave the technician cookies. No lie He also found the pump was putting out pressure below spec. I think that was the winner. Cookies were to get him to do it that day instead of waiting till tuesday __________________ Join the BMW CCA!!!!!!
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09-14-2009, 06:58 PM	#16
Highflyr Captain 49 Rep 704 Posts Drives: 08 335i E90 Join Date: Feb 2009 Location: Ellicott City, MD iTrader: (3)	So I replaced the spark plugs on Sat. Car felt a little bit stronger, but not by much. Sun. Got the same CEL and while shifting from 3rd to 4th again. This time though I shifted at 6500. Scanned it today and got misfire in cylinder 6 and low charge air pressure codes. Do I need to modify ignition advance or some other perameter? This is a data log from when the CEL came on a week or so ago. I also seem to be loosing boost but have no leaks ?? Attached Images __________________ Join the BMW CCA!!!!!!
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