misfire cylinder 1

Njmasouras · 09-04-2011, 05:04 PM

ok without writing 5 paragraphs ive had plenty of idle and running issues with my 08 335i... The dealer I go to sucks so I want to make that last resort. I threw code 29CD - misfire cylinder 1! Dealer replaced Hpfp and injectors 1, 2, and 3 (hassle). car is out of warranty! I replaced plugs with Iridium NGK's... what could be the problem now? Coil pack?
Thanks

cstmx_ryder · 09-04-2011, 05:16 PM

You can try to switch the coil pack from cyl. 1 to either 4,5, or 6 and see if the misfire follows.....

Why did you switch to Iridium NGK's? Do you have upped turbos? Most people recommend OEM Bosch.

Njmasouras · 09-04-2011, 05:20 PM

Yea everybody on the forums recommend oem bosch, I had all my buddies chirping in my ear about how good NGK's are lol so I ended up going with them. And good idea i will try switching the coil pack my mind isnt working today lol thanks man!

cstmx_ryder · 09-04-2011, 05:22 PM

NP!

BTW, did you notice any difference in idle/performance after switching to the NGK plugs? Just curious.....

Njmasouras · 09-05-2011, 02:56 AM

honestly i didn't notice an idle difference other than the car idling normally after the old plugs were switched... they were shot. Also, another reason i switched to the iridium ngk's was becuz some guy was talking about the carbon buildup from the bosch ones haha idk how true it is tho.

tibra1 · 09-05-2011, 03:04 AM

Quote:

Originally Posted by Njmasouras

honestly i didn't notice an idle difference other than the car idling normally after the old plugs were switched... they were shot. Also, another reason i switched to the iridium ngk's was becuz some guy was talking about the carbon buildup from the bosch ones haha idk how true it is tho.

I dont think you should use any plug other than the OEM Bosch..this car is very specific about the heat coeffcient of the plugs..w that said i had a misfire the other day..2nd time in 5 yrs..and I JUST installed brand new OEM bosch plugs..I cleared the codes..and have not had it reoccur..I have no idea what caused the misfire..but if it repeats I will have to look at the injectors or coil packs

Njmasouras · 09-05-2011, 08:56 AM

You're prolly right I just wanted to see what these things would do, ill end up switching back to bosch soon. Thanks for the input and hope you dont have to deal with that!

FastBimmerN54 · 09-05-2011, 10:51 AM

You should definitely stick with OEM plugs. If problem is still present try switching coilpacks and see if the misfire moves. That should answer your question if it does move.

Njmasouras · 09-06-2011, 01:49 AM

thanks everyone for the input... i found out its the coil pack since the misfire moved with it and i will be ordering a new one this week. I really dont need to swap all 6 so ill prolly buy 2 or 3 just to have a couple spares. ne one have ne sites i can order them off ecstuning is all ive found so far.
thanks again!!!

BMWsky · 09-06-2011, 06:19 AM

You can try Tischer BMW:

http://www.trademotion.com/shoppingc...6catalogid%3D1

09-04-2011, 05:04 PM	#1
Njmasouras New Member 2 Rep 13 Posts Drives: F06 650i GC x-drive Join Date: May 2010 Location: Michigan iTrader: (0)	misfire cylinder 1 ok without writing 5 paragraphs ive had plenty of idle and running issues with my 08 335i... The dealer I go to sucks so I want to make that last resort. I threw code 29CD - misfire cylinder 1! Dealer replaced Hpfp and injectors 1, 2, and 3 (hassle). car is out of warranty! I replaced plugs with Iridium NGK's... what could be the problem now? Coil pack? Thanks
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09-04-2011, 05:16 PM	#2
cstmx_ryder Colonel 164 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	You can try to switch the coil pack from cyl. 1 to either 4,5, or 6 and see if the misfire follows..... Why did you switch to Iridium NGK's? Do you have upped turbos? Most people recommend OEM Bosch. __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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09-04-2011, 05:20 PM	#3
Njmasouras New Member 2 Rep 13 Posts Drives: F06 650i GC x-drive Join Date: May 2010 Location: Michigan iTrader: (0)	Yea everybody on the forums recommend oem bosch, I had all my buddies chirping in my ear about how good NGK's are lol so I ended up going with them. And good idea i will try switching the coil pack my mind isnt working today lol thanks man!
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09-04-2011, 05:22 PM	#4
cstmx_ryder Colonel 164 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	NP! BTW, did you notice any difference in idle/performance after switching to the NGK plugs? Just curious..... __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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09-05-2011, 02:56 AM	#5
Njmasouras New Member 2 Rep 13 Posts Drives: F06 650i GC x-drive Join Date: May 2010 Location: Michigan iTrader: (0)	honestly i didn't notice an idle difference other than the car idling normally after the old plugs were switched... they were shot. Also, another reason i switched to the iridium ngk's was becuz some guy was talking about the carbon buildup from the bosch ones haha idk how true it is tho.
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09-05-2011, 08:56 AM	#7
Njmasouras New Member 2 Rep 13 Posts Drives: F06 650i GC x-drive Join Date: May 2010 Location: Michigan iTrader: (0)	You're prolly right I just wanted to see what these things would do, ill end up switching back to bosch soon. Thanks for the input and hope you dont have to deal with that!
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09-05-2011, 10:51 AM	#8
FastBimmerN54 Banned 10 Rep 375 Posts Drives: Seats and a Steering Wheel Join Date: Jul 2011 Location: Around iTrader: (1)	You should definitely stick with OEM plugs. If problem is still present try switching coilpacks and see if the misfire moves. That should answer your question if it does move.
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09-06-2011, 01:49 AM	#9
Njmasouras New Member 2 Rep 13 Posts Drives: F06 650i GC x-drive Join Date: May 2010 Location: Michigan iTrader: (0)	thanks everyone for the input... i found out its the coil pack since the misfire moved with it and i will be ordering a new one this week. I really dont need to swap all 6 so ill prolly buy 2 or 3 just to have a couple spares. ne one have ne sites i can order them off ecstuning is all ive found so far. thanks again!!!
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09-06-2011, 06:19 AM	#10
BMWsky Major 24 Rep 1,244 Posts Drives: 335i Join Date: Dec 2010 Location: Webster NY iTrader: (1)	You can try Tischer BMW: http://www.trademotion.com/shoppingc...6catalogid%3D1
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