Misfire trouble shooting

harkes · 06-04-2015, 05:23 PM

Hi

I went out for some pulls yesterday evening and my car started to misfire on cyl 1 (what it said on my OBD2 reader). Whats the general route to take to solve this? I dont know if my car has ever had new plugs so that might be a first. Any premium plugs you guys can recommend for the N55?

harkes · 06-04-2015, 05:42 PM

Been googling.....seems straight forward

obriennathaniel · 06-05-2015, 12:55 AM

Odd...I'm pushing 22psi+ and haven't had any misfire issues, stock plugs at 25k miles. I will be buying colder plugs here soon tho.

harkes · 06-05-2015, 02:03 AM

I bought my car second hand and if I know the Chinese right the plugs has not been changed on my car yet - 45000km (28000miles), so its probably about time.

What better than stock are there to get?

rustyminded · 06-05-2015, 06:22 AM

Just a hint please don't use OBDII with JB4 unless it's disabled map 0

Mike@N54Tuning.com · 06-05-2015, 08:21 AM

Quote:

Originally Posted by harkes

I bought my car second hand and if I know the Chinese right the plugs has not been changed on my car yet - 45000km (28000miles), so its probably about time.

What better than stock are there to get?

Definitely get the plugs changed.

Mike

mike@x-ph.com · 06-05-2015, 01:56 PM

Start by changing spark plugs

greekcs · 06-05-2015, 02:11 PM

swap coils and see if misfire moves.

smolik · 06-05-2015, 09:04 PM

Yes, swap coils first. Takes 5 minutes

sonicsonic · 06-06-2015, 01:21 AM

I am using spark plugs from M4 (M5/M6) and I have no misfires

harkes · 06-07-2015, 08:57 PM

Had all the plugs changed and in the process we moved the coil to cyl two to test that too.

Problem solved with a sparkplug change!

All the plugs looked like this.

rustyminded
You are probably referring to the post I wrote on N54Tech, but thanks anyway

I had been using my OBDlink and JB4 at the same time for +6 months before that post - no issues what so ever and I cannot see the car behaving differently not using it. But better be safe - expensive toys we are playing with.

rustyminded · 06-08-2015, 01:08 AM

Quote:

Originally Posted by harkes

Had all the plugs changed and in the process we moved the coil to cyl two to test that too.

Problem solved with a sparkplug change!

All the plugs looked like this.

rustyminded
You are probably referring to the post I wrote on N54Tech, but thanks anyway

I had been using my OBDlink and JB4 at the same time for +6 months before that post - no issues what so ever and I cannot see the car behaving differently not using it. But better be safe - expensive toys we are playing with.

glad you fixed it, had same issue but very very bad shake and hesitation on normal driving, they were spark too.. yea I've been using obd2 as well but since i read what Terry said, just another ocd after battery rail thing because i almost had a ground short problem and my car is N20 never touched the battery.

FSociety · 06-08-2015, 09:30 PM

Yep sparkplugs after 10-15k miles if using a tune is a must!

06-04-2015, 05:23 PM	#1
harkes Colonel 1078 Rep 2,358 Posts Drives: M135i, E39 M5, NSX and AE86 Join Date: Apr 2014 Location: Xiamen, China iTrader: (0)	Misfire trouble shooting - JB4 Hi I went out for some pulls yesterday evening and my car started to misfire on cyl 1 (what it said on my OBD2 reader). Whats the general route to take to solve this? I dont know if my car has ever had new plugs so that might be a first. Any premium plugs you guys can recommend for the N55? Attached Images __________________ M135i 8AT PWG, MHD, Pure Stage2, WMI via Torqbyte CM5-LT, Custom tuned by PureBoost (A Dane in China) Last edited by harkes; 06-04-2015 at 05:29 PM..
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06-04-2015, 05:42 PM	#2
harkes Colonel 1078 Rep 2,358 Posts Drives: M135i, E39 M5, NSX and AE86 Join Date: Apr 2014 Location: Xiamen, China iTrader: (0)	Been googling.....seems straight forward __________________ M135i 8AT PWG, MHD, Pure Stage2, WMI via Torqbyte CM5-LT, Custom tuned by PureBoost (A Dane in China)
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06-05-2015, 12:55 AM	#3
obriennathaniel @obriennathaniel_f30 on Instagram 515 Rep 1,063 Posts Drives: 582whp/596wtq '13 335i Join Date: Jan 2014 Location: Houston,Tx ig:obriennathaniel_f30 iTrader: (0)	Odd...I'm pushing 22psi+ and haven't had any misfire issues, stock plugs at 25k miles. I will be buying colder plugs here soon tho. __________________ CG Precision VS-1 Exhaust\DR-1 DownPipe \| PS2 Turbo\Inlet \| PDU PI w/Fuel-it platinum kit & E sensor \| GFB DV+ Diverter Valve \| BM3 w/AIC2-V\|Tune CaryTheLabelGuy \| Full E85 \| ATM FMIC \| ER Chargepipe Inlet/Outlet \| AFE Intake \| BC Coilovers \| PSS 255/40-275/35 Velos Designwerks S3 two piece 19x9/19x10 \| Osram Xenarc \| LED retro \| AWRON digital AC gauge\|
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06-05-2015, 02:03 AM	#4
harkes Colonel 1078 Rep 2,358 Posts Drives: M135i, E39 M5, NSX and AE86 Join Date: Apr 2014 Location: Xiamen, China iTrader: (0)	I bought my car second hand and if I know the Chinese right the plugs has not been changed on my car yet - 45000km (28000miles), so its probably about time. What better than stock are there to get? __________________ M135i 8AT PWG, MHD, Pure Stage2, WMI via Torqbyte CM5-LT, Custom tuned by PureBoost (A Dane in China)
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06-05-2015, 06:22 AM	#5
rustyminded Major 248 Rep 1,436 Posts Drives: BMW 328i Join Date: Nov 2012 Location: C iTrader: (0)	Just a hint please don't use OBDII with JB4 unless it's disabled map 0 __________________ F30 328i - 8 auto.. JB4-EWG harness, OCC, Injen Intake, AFE Scoop, AFE dp, AA axle-back - H&R springs, H&R Rear SB, Front Strut, F&R BMS spacers..
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06-05-2015, 01:56 PM	#7
mike@x-ph.com BimmerPost Supporting Vendor 24201 Rep 190,807 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Start by changing spark plugs __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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06-05-2015, 02:11 PM	#8
greekcs Major 773 Rep 1,113 Posts Drives: 2020 M340i xDrive Join Date: Jan 2010 Location: Long Island, NY iTrader: (0)	swap coils and see if misfire moves. __________________ 2003 11/02 Steel Gray Metallic on Red M3 - SMGII - VF570 - SUPERSPRINT - KW - BBS - CSL ROOF SOLD 2015 09/14 Alpine White on Red 435i xDrive MPPK - Expensive black vinyl with special lettering. SOLD 2020 12/19 Mineral Gray Metallic on Black Vinyl interior M340i xDrive
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06-05-2015, 09:04 PM	#9
smolik First Lieutenant 30 Rep 312 Posts Drives: AW F30 335i Join Date: Oct 2007 Location: South Florida iTrader: (0)	Yes, swap coils first. Takes 5 minutes
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06-06-2015, 01:21 AM	#10
sonicsonic Private First Class 31 Rep 159 Posts Drives: 2014 335i xDrive 6MT 370whp Join Date: Jun 2013 Location: Krasnodar iTrader: (0)	I am using spark plugs from M4 (M5/M6) and I have no misfires
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06-07-2015, 08:57 PM	#11
harkes Colonel 1078 Rep 2,358 Posts Drives: M135i, E39 M5, NSX and AE86 Join Date: Apr 2014 Location: Xiamen, China iTrader: (0)	Had all the plugs changed and in the process we moved the coil to cyl two to test that too. Problem solved with a sparkplug change! All the plugs looked like this. rustyminded You are probably referring to the post I wrote on N54Tech, but thanks anyway I had been using my OBDlink and JB4 at the same time for +6 months before that post - no issues what so ever and I cannot see the car behaving differently not using it. But better be safe - expensive toys we are playing with. Attached Images __________________ M135i 8AT PWG, MHD, Pure Stage2, WMI via Torqbyte CM5-LT, Custom tuned by PureBoost (A Dane in China)
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06-08-2015, 09:30 PM	#13
FSociety IG @bmwF9xG80 3813 Rep 7,593 Posts Drives: G80 M3, X4M, G07 X7m50 Join Date: Apr 2012 Location: NYC to NJ to Orlando FL iTrader: (3) Garage List 2023 BMW G80 M3 [0.00] 2020 BMW X4MC [0.00] 16' BMW X4 M40i [10.00] 06 Cadillac STS [0.00]	Yep sparkplugs after 10-15k miles if using a tune is a must! __________________ 60-130mph 6.5s X4M #HCP 60-130mph 5.0s G80 M3 #OrlandoAutowerks Sauce IG: @bmwF9XG80
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