Another misfire thread

SGJB135i · 07-11-2013, 07:35 PM

Hey guys so I'm still stuck on this annoying misfire. It says misfire cylinder 5 on the scanner..I changed the coil and it still gives me the code after deleting, hpfp and spark plugs were changed 2k miles ago, vanos solenoid was changed 100 miles ago. I did change the alternator the day before the problem begun. The engine keeps shaking and making a clunking noise. Only when it's cold it's undriveable. I have to keep turning it off and on then it drives normal and the power of the car is there. It's starting to become very annoying. Also, the reason why I haven't even looked at the injectors is because they had a recall on them about 10k miles ago so I don't think that will be the problem. Has anyone experienced this? Anything will help guys, thank you.

BobVader · 07-11-2013, 07:45 PM

swap your injector...ex: #5 to #2 and #2 to #5...and see if problem go on cyl #2...

TenshiWingusu · 07-11-2013, 07:52 PM

Quote:

Originally Posted by BobVader

swap your injector...ex: #5 to #2 and #2 to #5...and see if problem go on cyl #2...

IIRC don't you need to change the Teflon seal if you take out an injector, which requires a special tool to apply the seal? And then don't you need to replace both retention clips since they are one time use?

SGJB135i · 07-11-2013, 08:43 PM

Quote:

Originally Posted by BobVader

swap your injector...ex: #5 to #2 and #2 to #5...and see if problem go on cyl #2...

And what if the misfire is on 5 still?

SfValley335i · 07-11-2013, 08:56 PM

sell the car already and get a another 135

SGJB135i · 07-11-2013, 09:05 PM

Quote:

Originally Posted by SfValley335i

sell the car already and get a another 135

Because of a problem? Lol Im almost done paying off the car so I'm good for now with switching cars!

joec500 · 07-11-2013, 09:35 PM

Well I had something similar, where the misfire was isolated to one cylinder. I did the same thing and replaced the coil and I still had issues. So I then swapped an old plug I had kicking around and everything worked fine. When the dealer replaces a coil, they are generally instructed to replace the corresponding Plug. I think when the coil goes it might somehow take out the plug as well.

It's worth a shot if you have an old plug kicking around.

worked for me.

SGJB135i · 07-11-2013, 09:36 PM

Quote:

Originally Posted by joec500

Well I had something similar, where the misfire was isolated to one cylinder. I did the same thing and replaced the coil and I still had issues. So I then swapped an old plug I had kicking around and everything worked fine. When the dealer replaces a coil, they are generally instructed to replace the corresponding Plug. I think when the coil goes it might somehow take out the plug as well.

It's worth a shot if you have an old plug kicking around.

worked for me.

ill look into it! thanks!

joec500 · 07-11-2013, 09:37 PM

Quote:

Originally Posted by Jetblack135

ill look into it! thanks!

Cool...report back after you try that.

SGJB135i · 07-11-2013, 10:40 PM

Quote:

Originally Posted by joec500

Quote:

Originally Posted by Jetblack135

ill look into it! thanks!

Cool...report back after you try that.

Ima switch out the injector 5 for 2 and 2 for 5 and change the spark plug and see what happens!

SGJB135i · 07-12-2013, 12:13 PM

Quote:

Originally Posted by joec500

Quote:

Originally Posted by Jetblack135

ill look into it! thanks!

Cool...report back after you try that.

Hey so I opened her up, changed spark plugs 5 and 6 with 1 and 2, as well as the coils..the spark plugs were all black and I changed it 2k miles ago..I'm thinking there is a air leak maybe? What do you think!

SGJB135i · 07-12-2013, 12:50 PM

Okay guys I believe it's a air leak, when I was installing back the coils and stuff, I was doing an injector swap and a hose with a clip from the injectors to another entrance wasn't click on to the pipe so I believe it's a air leak as 5 and 6 spark plugs were black big time and not the other ones, I took some pics I'll post it once I get home!

SGJB135i · 07-12-2013, 01:27 PM

Okay guys here are some pictures...It was loose in the begining and imo i think it is still loose. But i guess it wasnt clicked onto the pipe in the beginging so i need some opinions on this. Is it suppose to be loose or is it suppose to be tight? Any feedback will help! thanks everyone for the help!

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Tzu · 07-12-2013, 01:59 PM

That is a check valve for one of the PCV systems and it should be connected to the valve cover.

SGJB135i · 07-12-2013, 02:05 PM

Quote:

Originally Posted by Tzu

That is a check valve for one of the PCV systems and it should be connected to the valve cover.

yeah i connected it back on, is it a possiblabilty it can cause a misfire?

joec500 · 07-12-2013, 03:23 PM

Quote:

Originally Posted by Jetblack135

yeah i connected it back on, is it a possiblabilty it can cause a misfire?

Yes...this would cause air leaks for sure...How does the car drive now?

SGJB135i · 07-12-2013, 03:32 PM

Quote:

Originally Posted by joec500

Yes...this would cause air leaks for sure...How does the car drive now?

well the car feels the same, i have to wait for a cold start to see if it messes up, usually mornings since i always driving lol

SGJB135i · 07-13-2013, 02:19 PM

Okay guys, after turning the car after switching coils and plugs 5 and 6 with 1 and 2..the clunking became more, the engine was working worse, bunch of smoke coming out of exhaust, like A LOT of smoke, car at the moment is bone stock no mods, I'm going to my techs shop after work and checking out the codes! Anyone experience this? Thanks

07-11-2013, 07:35 PM	#1
SGJB135i Banned 43 Rep 764 Posts Drives: Jet black 135i Join Date: Jul 2012 Location: Cali iTrader: (1)	Another misfire thread Hey guys so I'm still stuck on this annoying misfire. It says misfire cylinder 5 on the scanner..I changed the coil and it still gives me the code after deleting, hpfp and spark plugs were changed 2k miles ago, vanos solenoid was changed 100 miles ago. I did change the alternator the day before the problem begun. The engine keeps shaking and making a clunking noise. Only when it's cold it's undriveable. I have to keep turning it off and on then it drives normal and the power of the car is there. It's starting to become very annoying. Also, the reason why I haven't even looked at the injectors is because they had a recall on them about 10k miles ago so I don't think that will be the problem. Has anyone experienced this? Anything will help guys, thank you.
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07-11-2013, 07:45 PM	#2
BobVader Lieutenant 32 Rep 414 Posts Drives: 335xi sedan 2008 Join Date: Mar 2008 Location: Montreal, Canada iTrader: (0)	swap your injector...ex: #5 to #2 and #2 to #5...and see if problem go on cyl #2... __________________ '08 BMW 335xi // Sedan // Black Sapphire // Sports Package//Mods: JB3 2.0\|Unlocked 18ohm Board\|BMS Meth Kit\|AA Speed Delimiter\|BMS tuning gauge\|UR CL DP \|BMS DCI\|AA Exhaust\|Helix fmic\|CDV\|H&R coilover\| 10mm Spacers H&R on 4 wheels\|Record for XI's on dragtimes.com, 11.768s@118.70Top speed 186,4 mph GPS, vbox 60-130mph at 10.18
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07-11-2013, 09:35 PM	#7
joec500 Brigadier General 125 Rep 3,004 Posts Drives: it has 4 wheels Join Date: Jul 2008 Location: San Francisco iTrader: (10)	Well I had something similar, where the misfire was isolated to one cylinder. I did the same thing and replaced the coil and I still had issues. So I then swapped an old plug I had kicking around and everything worked fine. When the dealer replaces a coil, they are generally instructed to replace the corresponding Plug. I think when the coil goes it might somehow take out the plug as well. It's worth a shot if you have an old plug kicking around. worked for me. __________________ 2007 E92 6MT SGM: MusicarNW Level 2, Procede Rev 2.5, FFTEC/Vishnu LPFP with Flexfuel Sensor and Flash, M3 Offset V701's, WaveTrac LSD, Michelin PSS, Downpipes, M3 Control Arms, TCKline D/A Suspension, LCI Tail lights, Lux AE's, ER Charge Pipe, DCI's, Mtech Front and Rear, M3 Sideskirts, HPF Stage 1 Clutch
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07-12-2013, 12:50 PM	#12
SGJB135i Banned 43 Rep 764 Posts Drives: Jet black 135i Join Date: Jul 2012 Location: Cali iTrader: (1)	Okay guys I believe it's a air leak, when I was installing back the coils and stuff, I was doing an injector swap and a hose with a clip from the injectors to another entrance wasn't click on to the pipe so I believe it's a air leak as 5 and 6 spark plugs were black big time and not the other ones, I took some pics I'll post it once I get home!
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07-12-2013, 01:27 PM	#13
SGJB135i Banned 43 Rep 764 Posts Drives: Jet black 135i Join Date: Jul 2012 Location: Cali iTrader: (1)	Okay guys here are some pictures...It was loose in the begining and imo i think it is still loose. But i guess it wasnt clicked onto the pipe in the beginging so i need some opinions on this. Is it suppose to be loose or is it suppose to be tight? Any feedback will help! thanks everyone for the help!
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07-11-2013, 08:56 PM	#5
SfValley335i Colonel 164 Rep 2,409 Posts Drives: Current:135i Sold:335i sedan Join Date: Mar 2007 Location: City of Angels iTrader: (8)	sell the car already and get a another 135
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07-12-2013, 01:59 PM	#14
Tzu Lieutenant Colonel 29 Rep 1,551 Posts Drives: 335i Join Date: Jun 2010 Location: Toronto iTrader: (1)	That is a check valve for one of the PCV systems and it should be connected to the valve cover.
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07-13-2013, 02:19 PM	#18
SGJB135i Banned 43 Rep 764 Posts Drives: Jet black 135i Join Date: Jul 2012 Location: Cali iTrader: (1)	Okay guys, after turning the car after switching coils and plugs 5 and 6 with 1 and 2..the clunking became more, the engine was working worse, bunch of smoke coming out of exhaust, like A LOT of smoke, car at the moment is bone stock no mods, I'm going to my techs shop after work and checking out the codes! Anyone experience this? Thanks
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