Cylinder 2 & 3 misfire.......

cstmx_ryder · 07-08-2009, 03:42 PM

I've been getting P0302 and P0303 and P0300 codes ever since I loaded the 7-03 maps...........Does this have to do with the beta maps you think?

Or is it something else, like faulty coils?

FWIW, I'm running stage 3.

TIA

645Nm · 07-08-2009, 04:04 PM

Look at your signature mod # 3

cstmx_ryder · 07-08-2009, 04:16 PM

CL DPs? I've had them for about a year, with O2 SIM and no problems until now.........R U serious?

Anyone else? Please chime in...........

TIA

sbdavis1 · 07-08-2009, 04:19 PM

i had misfire cylinder 3....spark plug was my problem...

Kbueno · 07-08-2009, 04:46 PM

+1 for plugs

cstmx_ryder · 07-08-2009, 05:00 PM

I just changed my plugs about 4-5 months ago, all six of them..........Please don't tell me I have to change them AGAIN!!

AlpineG05 · 07-08-2009, 05:25 PM

spark plug or injectors my friend same problem here.

cstmx_ryder · 07-08-2009, 05:33 PM

Are there better plugs available? I just changed all 6 with OEM Bosch plugs..........

How often do we have to change the plugs on a tuned car? I thought once a year would be sufficient...........

TIA

sbdavis1 · 07-08-2009, 06:21 PM

i would put my money on the plugs...personally i pulled mine off before i bought new plugs. even with a tune once a year seems a bit much unless you're putting 20,000+/year

cstmx_ryder · 07-08-2009, 06:36 PM

yeah, I thought once a year is a bit much too!! So if I change the plugs again, and that happens to be the issue, then I have changed plugs twice in a year!! WAY TOO MUCH, wouldn't you say?

That's why I thought it might have been something else, since my plugs are fairly new.......If you know what I mean.

TIA

Vicko · 07-08-2009, 10:35 PM

Witch plugs do you guys sugest?? OEMs?

I've put 36k miles on my car, 34k of them tuned all the way back from v1.45 days! I know I need to change them soon...

enrita · 07-09-2009, 03:06 AM

Only OEM are available now. I have asked HKS about their performance plugs but havent got an answer yet .

nukezero · 07-09-2009, 03:38 AM

how much are plugs for a 335i ?

Former_Boosted_IS · 07-09-2009, 06:16 AM

Before you blow the money on plugs. Swap coil 1 with coil 2, then swap coil 4 with coil 3. If the misfires follow the swap to 1 and 4, then it is bad coil packs.

scalbert · 07-09-2009, 08:51 AM

Quote:

Originally Posted by Former_Boosted_IS

Before you blow the money on plugs. Swap coil 1 with coil 2, then swap coil 4 with coil 3. If the misfires follow the swap to 1 and 4, then it is bad coil packs.

I concur. I would add that if the misfires continue at the same location, move the plugs in the same manner. If it persists at the same location, that would most likely be a fuel injector.

MSPORTWORLD · 07-09-2009, 09:29 AM

Quote:

Originally Posted by Former_Boosted_IS

Before you blow the money on plugs. Swap coil 1 with coil 2, then swap coil 4 with coil 3. If the misfires follow the swap to 1 and 4, then it is bad coil packs.

Also what I did for my misfires!

smolik · 07-09-2009, 09:32 AM

yes listen to booster IS i had the same problem and what he said the dealership[ did for me.. take off ur mods go into dealer

Former_Boosted_IS · 07-09-2009, 10:54 AM

Quote:

Originally Posted by hkyplaynazn

Also what I did for my misfires!

Doesn't always work, but it can help isolate the problem.

wadgras44 · 07-09-2009, 12:28 PM

it was injectors for me

cstmx_ryder · 07-09-2009, 02:26 PM

Ok, my next question is probably a stupid one.........

Is cylinder 1 towards the front of the engine or towards the back........LOL.

That way I know which way to count and won't get the wrong cylinder.......

TIA

645Nm · 07-09-2009, 04:55 PM

Mod number #3

cstmx_ryder · 07-09-2009, 06:47 PM

Quote:

Originally Posted by hkyplaynazn

Also what I did for my misfires!

Do you think it could also be cause by my CL DPs? As someone had suggested? I figure, if that was the issue, I would have encountered this a long time ago. As I've had the CL DPs for about a year now......

TIA

07-08-2009, 03:42 PM	#1
cstmx_ryder Colonel 173 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	Cylinder 2 & 3 misfire....... I've been getting P0302 and P0303 and P0300 codes ever since I loaded the 7-03 maps...........Does this have to do with the beta maps you think? Or is it something else, like faulty coils? FWIW, I'm running stage 3. TIA __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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07-08-2009, 04:04 PM	#2
645Nm only in it for the torque - awuleth'umshini wami 50 Rep 425 Posts Drives: sapphire black 335i Join Date: Apr 2009 Location: nomad iTrader: (0) Garage List 2009 335i sedan [0.00] 2005 120D [0.00] 2007 335i sedan [0.00]	Look at your signature mod # 3 __________________
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07-08-2009, 04:16 PM	#3
cstmx_ryder Colonel 173 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	CL DPs? I've had them for about a year, with O2 SIM and no problems until now.........R U serious? Anyone else? Please chime in........... TIA __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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07-08-2009, 04:19 PM	#4
sbdavis1 First Lieutenant 22 Rep 325 Posts Drives: 335i Join Date: Jul 2008 Location: tempe iTrader: (2)	i had misfire cylinder 3....spark plug was my problem...
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07-08-2009, 04:46 PM	#5
Kbueno Lieutenant Colonel 101 Rep 1,712 Posts Drives: F82 Join Date: Jan 2007 Location: California iTrader: (5)	+1 for plugs
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07-08-2009, 05:00 PM	#6
cstmx_ryder Colonel 173 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	I just changed my plugs about 4-5 months ago, all six of them..........Please don't tell me I have to change them AGAIN!! __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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07-08-2009, 05:25 PM	#7
AlpineG05 hi 219 Rep 1,217 Posts Drives: Alpine White G80 Comp Join Date: Feb 2008 Location: Bakersfield, Cali iTrader: (1)	spark plug or injectors my friend same problem here. __________________ 2022 M Sport G05 Jb4, CTS catless dp, M performance exhaust, bms intake, IND goodies, Maxton kit
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07-08-2009, 05:33 PM	#8
cstmx_ryder Colonel 173 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	Are there better plugs available? I just changed all 6 with OEM Bosch plugs.......... How often do we have to change the plugs on a tuned car? I thought once a year would be sufficient........... TIA __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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07-08-2009, 06:21 PM	#9
sbdavis1 First Lieutenant 22 Rep 325 Posts Drives: 335i Join Date: Jul 2008 Location: tempe iTrader: (2)	i would put my money on the plugs...personally i pulled mine off before i bought new plugs. even with a tune once a year seems a bit much unless you're putting 20,000+/year
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07-08-2009, 06:36 PM	#10
cstmx_ryder Colonel 173 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	yeah, I thought once a year is a bit much too!! So if I change the plugs again, and that happens to be the issue, then I have changed plugs twice in a year!! WAY TOO MUCH, wouldn't you say? That's why I thought it might have been something else, since my plugs are fairly new.......If you know what I mean. TIA __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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07-08-2009, 10:35 PM	#11
Vicko Private First Class 3 Rep 183 Posts Drives: 335i coupe 6mt Join Date: Mar 2007 Location: San Juan,PR iTrader: (0)	Witch plugs do you guys sugest?? OEMs? I've put 36k miles on my car, 34k of them tuned all the way back from v1.45 days! I know I need to change them soon...
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07-09-2009, 03:06 AM	#12
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	Only OEM are available now. I have asked HKS about their performance plugs but havent got an answer yet . __________________ 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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07-09-2009, 03:38 AM	#13
nukezero Major 358 Rep 1,465 Posts Drives: BMW 3 series Join Date: Sep 2008 Location: Irvine iTrader: (8)	how much are plugs for a 335i ?
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07-09-2009, 06:16 AM	#14
Former_Boosted_IS Major General 315 Rep 5,175 Posts Drives: 4 Wheels Join Date: Aug 2007 Location: Planet Earth! iTrader: (15)	Before you blow the money on plugs. Swap coil 1 with coil 2, then swap coil 4 with coil 3. If the misfires follow the swap to 1 and 4, then it is bad coil packs.
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07-09-2009, 09:32 AM	#17
smolik First Lieutenant 31 Rep 312 Posts Drives: AW F30 335i Join Date: Oct 2007 Location: South Florida iTrader: (0)	yes listen to booster IS i had the same problem and what he said the dealership[ did for me.. take off ur mods go into dealer
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07-09-2009, 12:28 PM	#19
wadgras44 Captain 49 Rep 662 Posts Drives: 2009 C63 AMG Join Date: Mar 2007 Location: Voorhees, NJ iTrader: (22)	it was injectors for me
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07-09-2009, 02:26 PM	#20
cstmx_ryder Colonel 173 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	Ok, my next question is probably a stupid one......... Is cylinder 1 towards the front of the engine or towards the back........LOL. That way I know which way to count and won't get the wrong cylinder....... TIA __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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07-09-2009, 04:55 PM	#21
645Nm only in it for the torque - awuleth'umshini wami 50 Rep 425 Posts Drives: sapphire black 335i Join Date: Apr 2009 Location: nomad iTrader: (0) Garage List 2009 335i sedan [0.00] 2005 120D [0.00] 2007 335i sedan [0.00]	Treat the cause not the symptom Mod number #3 __________________
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