WTF is this?!!

Bstone · 06-13-2013, 09:24 AM

So I've been having problems with cylinder 6 misfiring lately. I decided to swap the coil and check the plug. This was sitting on top of the plug. WTF?!

enrita · 06-13-2013, 09:26 AM

piece of the coil?

Bimmer305 · 06-13-2013, 09:43 AM

Looks just like this:

enrita · 06-13-2013, 09:50 AM

yeah probably that but how the hell did it get there? if its the injector than is not sitting tight hence missfire...

Stan.mac · 06-13-2013, 09:52 AM

The misfire hit the plug so hard that the coils' tooth fell out!

It's probably a jimmy rig used by one of the engineers to close the gap between the coil and the plug.

Bstone · 06-13-2013, 10:10 AM

That's crazy, I looked at the coil and didn't see anything strange, but ya it does look like that piece in the picture. Weird.

Bimmer305 · 06-13-2013, 10:14 AM

That peace keeps the injector in a certain direction. If you over tighten the fuel line that connects to the injector you could brake this peace off and fall on top of spark plug.

And MAYBE if the injector is twisted, that's what's causing the misfire?

Stan.mac · 06-13-2013, 12:15 PM

^nice... that seems to be your answer right there.
so what you're telling me if that its not a tooth?

Bstone · 06-13-2013, 04:12 PM

Quote:

Originally Posted by Bimmer305

That peace keeps the injector in a certain direction. If you over tighten the fuel line that connects to the injector you could brake this peace off and fall on top of spark plug.

And MAYBE if the injector is twisted, that's what's causing the misfire?

I have no codes so far but if I get any I probably just need to replace the coil and possibly adjust the injector positioning?

Bimmer305 · 06-13-2013, 04:57 PM

Quote:

Originally Posted by Bstone

I have no codes so far but if I get any I probably just need to replace the coil and possibly adjust the injector positioning?

If you keep getting misfires, make sure the injector missing that peace is in right direction.

If everything is fine then follow http://www.e90post.com/forums/showthread.php?t=631829

enrita · 06-13-2013, 04:59 PM

U need to find out where that piece belong, if its the injektor u need to remove it/replace it.

Rotorocious · 06-13-2013, 05:45 PM

I've had that happen before and found those things.
There is still alot of pressure on the injector holding it down.

I don't think that would cause misfires. There's a pretty tiny weld joint that holds that tab in place in the Injector.
Have the injectors ever been replaced?
Get some pics of the injectors positions?

06-13-2013, 09:24 AM	#1
Bstone Private 0 Rep 52 Posts Drives: 2014 BMW X5 50i Join Date: Apr 2013 Location: Dallas, TX iTrader: (1)	WTF is this?!! So I've been having problems with cylinder 6 misfiring lately. I decided to swap the coil and check the plug. This was sitting on top of the plug. WTF?! __________________ 2014 BMW X5 50i 520awhp 605awtq
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06-13-2013, 09:26 AM	#2
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	piece of the coil? __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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06-13-2013, 09:43 AM	#3
Bimmer305 Second Lieutenant 35 Rep 288 Posts Drives: E92 335i Join Date: Jun 2012 Location: Miami iTrader: (2)	Looks just like this: Attached Images __________________ Cobb / DCI / VRSF Downpipes / VRSF 7" Intercooler / Walbro LPFP / E85
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06-13-2013, 09:50 AM	#4
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	yeah probably that but how the hell did it get there? if its the injector than is not sitting tight hence missfire... __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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06-13-2013, 09:52 AM	#5
Stan.mac Second Lieutenant 9 Rep 296 Posts Drives: 135i M-Sport Join Date: Aug 2012 Location: NoVA iTrader: (3)	The misfire hit the plug so hard that the coils' tooth fell out! It's probably a jimmy rig used by one of the engineers to close the gap between the coil and the plug. __________________ "I live my life a quarter mile at a time. Nothing else matters: not the mortgage, not the store, not my team and all their bullshit. For those ten seconds or less, I'm free." afe DCI/Greddy Oil Catch Can/Catless DP/ Cobb Stage 2+/Berk Axle-Back(Race)/AAW CP w BOV/H&R Springs/ ALPINA Flash/Helix FMIC/
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06-13-2013, 10:10 AM	#6
Bstone Private 0 Rep 52 Posts Drives: 2014 BMW X5 50i Join Date: Apr 2013 Location: Dallas, TX iTrader: (1)	That's crazy, I looked at the coil and didn't see anything strange, but ya it does look like that piece in the picture. Weird. __________________ 2014 BMW X5 50i 520awhp 605awtq
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06-13-2013, 10:14 AM	#7
Bimmer305 Second Lieutenant 35 Rep 288 Posts Drives: E92 335i Join Date: Jun 2012 Location: Miami iTrader: (2)	That peace keeps the injector in a certain direction. If you over tighten the fuel line that connects to the injector you could brake this peace off and fall on top of spark plug. And MAYBE if the injector is twisted, that's what's causing the misfire? Attached Images __________________ Cobb / DCI / VRSF Downpipes / VRSF 7" Intercooler / Walbro LPFP / E85
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06-13-2013, 12:15 PM	#8
Stan.mac Second Lieutenant 9 Rep 296 Posts Drives: 135i M-Sport Join Date: Aug 2012 Location: NoVA iTrader: (3)	^nice... that seems to be your answer right there. so what you're telling me if that its not a tooth? __________________ "I live my life a quarter mile at a time. Nothing else matters: not the mortgage, not the store, not my team and all their bullshit. For those ten seconds or less, I'm free." afe DCI/Greddy Oil Catch Can/Catless DP/ Cobb Stage 2+/Berk Axle-Back(Race)/AAW CP w BOV/H&R Springs/ ALPINA Flash/Helix FMIC/
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06-13-2013, 04:59 PM	#11
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	U need to find out where that piece belong, if its the injektor u need to remove it/replace it.
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06-13-2013, 05:45 PM	#12
Rotorocious Lieutenant Colonel 104 Rep 1,520 Posts Drives: 335xi Join Date: May 2010 Location: Colorado iTrader: (3)	I've had that happen before and found those things. There is still alot of pressure on the injector holding it down. I don't think that would cause misfires. There's a pretty tiny weld joint that holds that tab in place in the Injector. Have the injectors ever been replaced? Get some pics of the injectors positions?
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