Misfire cylinder 2 any input?

Kosta135i · 07-06-2014, 06:51 PM

So today I got a misfire in cylinder 2 at WOT. Spark plugs were changed less than 10k miles ago. Car is approaching 63k miles and is fbo any ideas? I'm thinking coil pack

*UPDATE* I swapped the coil and the misfire followed. Replaced the coil and shes running like new

cagekicker · 07-06-2014, 06:59 PM

usually it's your coils. i had a misfire in cyl #4 and #5 so i changed the plugs. same misfire happened at WOT. changed out #4 and #5 coils and she's running new again.

Kosta135i · 07-06-2014, 07:19 PM

Quote:

Originally Posted by cagekicker

usually it's your coils. i had a misfire in cyl #4 and #5 so i changed the plugs. same misfire happened at WOT. changed out #4 and #5 coils and she's running new again.

I hope it's coils and not injectors. Gonna take it to mechanic tomorrow morning to see for sure. :/

granracing · 07-08-2014, 07:58 AM

If it's the injectors and you can be without the car for a couple of days Marrion Injectors can clean / blueprint them pretty inexpensively. I'm having mine done (different car) and the cost for four is right around $100 total. Injector.com

And they're located in CT. I dropped mine off to their ship; they only charge/ $10 for next day delivery in CT.

But sounds like what I'm experiencing; a bad coil. ~ $50

Dackelone · 07-08-2014, 08:02 AM

Usually in this order... spark plug/coil pack/injector/carbon buildup.

Easiest thing is to move that cylinder spark plug to another spot, and see if the misfire code moves. Then you will know what you next step should be.

///Maria · 07-08-2014, 09:10 PM

hook up pressure gauge, activate injectors VIA diag scan tool, watch pressure on each individual injector activation. This will determine if injector is the issue. Misfire can also be caused by faulty vanos solenoids. My cylinder 3 misfire was due to faulty intake vanos solenoid.

litebulb · 07-09-2014, 11:42 AM

Had the same issue but on C1, do the swap to diagnose if it is just the coil.

Anygirl · 07-10-2014, 08:23 AM

Seems to be a fairly common problem with the 1? I was looking through other threads a few months ago for the same problem and the bimmerfest forums had a lot of similar issues. Ultimately it was a coil, but the problem has since returned and I need to replace another. Thinking of just upgrading to the high perf ones anyway...

granracing · 07-10-2014, 09:46 AM

What are the high performance ones that you're considering?

This seems to be a pretty common issue. My car is also mis-firing and already changed plugs. Are these an item that all should be replaced at a specific mileage like plugs?

darkrom · 07-10-2014, 10:12 AM

I've never heard of high performance coils. Anyone have info/link?

Mine is fine but I like to do preventative maintenance. Its my daily driver and I depend on it for work all year, so I want to keep it running at top shape.

Anygirl · 07-10-2014, 10:25 AM

I'm fairly certain bav auto had... I looked into it when I first had this issue. Money has prevented me from pursuing it though. Looking at site now, I don't see, but I know I tore out the page from the catalog. As soon as I find them online I'll post the link. I was interested in the extra hp. The car is my daily, but I beat the crap out of it at Autox every weekend.

granracing · 07-10-2014, 08:28 PM

Ah, okay. My guess is marketing got that.

mike@x-ph.com · 07-11-2014, 06:13 PM

Quote:

Originally Posted by Kosta135i

So today I got a misfire in cylinder 2 at WOT. Spark plugs were changed less than 10k miles ago. Car is approaching 63k miles and is fbo any ideas? I'm thinking coil pack

*UPDATE* I swapped the coil and the misfire followed. Replaced the coil and shes running like new

Glad you figured it out

07-06-2014, 06:51 PM	#1
Kosta135i Second Lieutenant 16 Rep 202 Posts Drives: Black sapphire 135i 2008. Join Date: Aug 2013 Location: Connecticut iTrader: (1)	Misfire cylinder 2 any input? So today I got a misfire in cylinder 2 at WOT. Spark plugs were changed less than 10k miles ago. Car is approaching 63k miles and is fbo any ideas? I'm thinking coil pack UPDATE I swapped the coil and the misfire followed. Replaced the coil and shes running like new __________________ [B][COLOR="Red"]Vrsf 3'' Dps~Vrsf 7'' FMIC~AA Gen 2 Exhaust ~BMS DCI ~VRSF CP with Tial BOV~Cobb V3 With Custom PTF E40 stg2+ Tune Last edited by Kosta135i; 07-11-2014 at 02:59 PM..
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07-06-2014, 06:59 PM	#2
cagekicker Major 16 Rep 1,335 Posts Drives: '09 crimson red 135i Join Date: Nov 2008 Location: miami (vice city) fl. iTrader: (0)	usually it's your coils. i had a misfire in cyl #4 and #5 so i changed the plugs. same misfire happened at WOT. changed out #4 and #5 coils and she's running new again. __________________ 6MT/ Sport Package/ N54/ Asa wheels/ Eibach pro kit springs/ Active autowerke Exhaust/ 35% tint
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07-08-2014, 07:58 AM	#4
granracing Private First Class 17 Rep 146 Posts Drives: Mazda Miata Join Date: Jul 2013 Location: CT iTrader: (0)	If it's the injectors and you can be without the car for a couple of days Marrion Injectors can clean / blueprint them pretty inexpensively. I'm having mine done (different car) and the cost for four is right around $100 total. Injector.com And they're located in CT. I dropped mine off to their ship; they only charge/ $10 for next day delivery in CT. But sounds like what I'm experiencing; a bad coil. ~ $50 __________________ Dave Gran Free Guide to Motorsports AND Car Reviews from an Enthusiast's Perspective GoAheadTakeTheWheel.com
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07-08-2014, 08:02 AM	#5
Dackelone European Editor 10528 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Usually in this order... spark plug/coil pack/injector/carbon buildup. Easiest thing is to move that cylinder spark plug to another spot, and see if the misfire code moves. Then you will know what you next step should be. __________________ Dackel's European Delivery Museum Guide
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07-08-2014, 09:10 PM	#6
///Maria Banned 5 Rep 51 Posts Drives: 235i, M3, 328i, A4, Ferrari360 Join Date: Jun 2013 Location: San Antonio iTrader: (0)	hook up pressure gauge, activate injectors VIA diag scan tool, watch pressure on each individual injector activation. This will determine if injector is the issue. Misfire can also be caused by faulty vanos solenoids. My cylinder 3 misfire was due to faulty intake vanos solenoid.
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07-09-2014, 11:42 AM	#7
litebulb Captain 68 Rep 627 Posts Drives: '09 E88 135i M-Sport/6MT/SGM Join Date: Feb 2011 Location: Vancouver iTrader: (3) Garage List 2009 BMW 135i Cabri ... [10.00]	Had the same issue but on C1, do the swap to diagnose if it is just the coil. __________________ \| Dinan S2=>MHD \| e46 M3 trans mounts \| Dinan CF CAI \| ER CP \| HKS SSQV4 BOV \| RB PCV Valve \| VRSF DP \| N55 MP \| BMW PE \| OC \| VRSF 7" FMIC \| UUC Evo3 SSK \| EBC GD Sport Rotors \| EBC Redstuff \| TRW F+R \| \| Whiteline KDT918 \| H&R Front Sway \| BMWP 313 \| MPSS 225/255 \| Scopione CF Rear Diffuser \| iCarbon CF Rear Spoiler \| P3 v2.1 Gauge \| Interior LED Retrofit \|
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07-10-2014, 08:23 AM	#8
Anygirl New Member 0 Rep 6 Posts Drives: Alpine White 128i Join Date: Jul 2014 Location: NYC iTrader: (0)	Seems to be a fairly common problem with the 1? I was looking through other threads a few months ago for the same problem and the bimmerfest forums had a lot of similar issues. Ultimately it was a coil, but the problem has since returned and I need to replace another. Thinking of just upgrading to the high perf ones anyway...
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07-10-2014, 09:46 AM	#9
granracing Private First Class 17 Rep 146 Posts Drives: Mazda Miata Join Date: Jul 2013 Location: CT iTrader: (0)	What are the high performance ones that you're considering? This seems to be a pretty common issue. My car is also mis-firing and already changed plugs. Are these an item that all should be replaced at a specific mileage like plugs? __________________ Dave Gran Free Guide to Motorsports AND Car Reviews from an Enthusiast's Perspective GoAheadTakeTheWheel.com
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07-10-2014, 10:12 AM	#10
darkrom Colonel 188 Rep 2,224 Posts Drives: 135i Join Date: Feb 2011 Location: Rhode Island iTrader: (5)	I've never heard of high performance coils. Anyone have info/link? Mine is fine but I like to do preventative maintenance. Its my daily driver and I depend on it for work all year, so I want to keep it running at top shape.
	Appreciate 0 Quote

07-10-2014, 10:25 AM	#11
Anygirl New Member 0 Rep 6 Posts Drives: Alpine White 128i Join Date: Jul 2014 Location: NYC iTrader: (0)	I'm fairly certain bav auto had... I looked into it when I first had this issue. Money has prevented me from pursuing it though. Looking at site now, I don't see, but I know I tore out the page from the catalog. As soon as I find them online I'll post the link. I was interested in the extra hp. The car is my daily, but I beat the crap out of it at Autox every weekend.
	Appreciate 0 Quote

07-10-2014, 08:28 PM	#12
granracing Private First Class 17 Rep 146 Posts Drives: Mazda Miata Join Date: Jul 2013 Location: CT iTrader: (0)	Ah, okay. My guess is marketing got that. __________________ Dave Gran Free Guide to Motorsports AND Car Reviews from an Enthusiast's Perspective GoAheadTakeTheWheel.com
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