My car wont run Cobb stage 2+.

aramsey80 · 11-13-2011, 05:20 PM

Like the tittle says. It starts misfiring at WOT. I switch to the regular stage 2 map and it runs fine. Any ideas? It threw a misfire code on #6 cylinder. The car is a 07 6at. Hpf intercooler, Bms intake and cpe downpipes.

enrita · 11-13-2011, 05:21 PM

how old are your plugs?

mithiral67 · 11-13-2011, 05:29 PM

my car did the same thing. New plugs fixed it.

aramsey80 · 11-13-2011, 05:50 PM

Not sure bought the car used. 38k miles. I will change them and see. Thanks.

tofu- · 11-13-2011, 05:55 PM

I had the same problem on a different tune. Was my ignition coil. So yeah, check both

mithiral67 · 11-13-2011, 06:06 PM

yea, my car has 36k (i bought new) with 2 hpfps, new injecters under recalls and standard maintenance and they never changed my plugs.

JStang · 11-13-2011, 06:06 PM

Quote:

Originally Posted by aramsey80

Not sure bought the car used. 38k miles. I will change them and see. Thanks.

With 38k you are likely on the original plugs. I would bet that is the issue.

Bakeme521 · 11-13-2011, 06:23 PM

had the same problem, had one bad coil. Changed it and it was fixed.

On a side note, do you feel strange throttle oscillations when putting it to the floor?

mithiral67 · 11-13-2011, 06:37 PM

Quote:

Originally Posted by Bakeme521

On a side note, do you feel strange throttle oscillations when putting it to the floor?

Thats a known issue that cobb is working on.

ducati955 · 11-13-2011, 07:43 PM

throttle oscillations? what exactly does that mean?

nitehawk · 11-13-2011, 07:55 PM

Same thing here...cylinder 6 misfires at WOT on S2+. Original plugs with 35k miles. Plugs will be changed next week. Hopefully, that will fix it. No issues running S1

Pseudo Nim · 11-13-2011, 08:50 PM

If your car is still under warranty, did you just bring it to the dealer with the tune installed and the code thrown? Or did you pay for a plug change? Since there is no way to throw the misfire on stock/stg1/stg2, any idea if the load placed on the plugs will EVENTUALLY manifest itself on the stock map so that it can be warrantied?

nitehawk · 11-13-2011, 09:47 PM

Quote:

Originally Posted by Pseudo Nim

If your car is still under warranty, did you just bring it to the dealer with the tune installed and the code thrown? Or did you pay for a plug change? Since there is no way to throw the misfire on stock/stg1/stg2, any idea if the load placed on the plugs will EVENTUALLY manifest itself on the stock map so that it can be warrantied?

It will, but honestly you may be waiting forever. Buy the plugs online, and get it out of the way for less than $100

Pseudo Nim · 11-13-2011, 09:57 PM

Quote:

Originally Posted by nitehawk

It will, but honestly you may be waiting forever. Buy the plugs online, and get it out of the way for less than $100

I see - that's definitely not expensive. what if it's the coils tho

nitehawk · 11-13-2011, 10:03 PM

Quote:

Originally Posted by Pseudo Nim

I see - that's definitely not expensive. what if it's the coils tho

Well, I think its good practice to start with a fresh set of plugs as soon as you start running a tune - as you would have to change them out later anyway. If the problem still persists, then you can start looking at coils

Brey335i · 11-14-2011, 01:41 PM

A fresh set of plugs is never a bad idea

ECSTuning · 11-14-2011, 02:24 PM

I'm with everyone else, first thing we look at on our 335i when she miss fires is the plugs.

ECS Tuning

aramsey80 · 11-15-2011, 10:22 AM

Changed the plugs and the car runs great!! Thanks.

Bakeme521 · 11-15-2011, 11:13 AM

Quote:

Originally Posted by mithiral67

Thats a known issue that cobb is working on.

Yes and no, I contacted them and they told me to check my DCI b/c they have seen that happen with DCI with the air filter on too far, that's all they really had to tell me about it. I have talked about it on another forum and only some are feeling it, not everyone running stg 2+ is.

335TWNTURBO · 11-15-2011, 02:34 PM

Quote:

Originally Posted by mithiral67

my car did the same thing. New plugs fixed it.

+1

11-13-2011, 05:20 PM	#1
aramsey80 Private 3 Rep 78 Posts Drives: 2009 135i Join Date: Dec 2010 Location: Dallas,Tx iTrader: (0)	My car wont run Cobb stage 2+. Like the tittle says. It starts misfiring at WOT. I switch to the regular stage 2 map and it runs fine. Any ideas? It threw a misfire code on #6 cylinder. The car is a 07 6at. Hpf intercooler, Bms intake and cpe downpipes.
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11-13-2011, 05:21 PM	#2
enrita Major General 161 Rep 7,377 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	how old are your plugs? __________________ 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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11-13-2011, 05:29 PM	#3
mithiral67 That guy 117 Rep 5,740 Posts Drives: 2015 Cayman GTS Join Date: Jun 2008 Location: Chicago Burbs iTrader: (4) Garage List 2015 Porsche Cayman ... [0.00]	my car did the same thing. New plugs fixed it.
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11-13-2011, 05:50 PM	#4
aramsey80 Private 3 Rep 78 Posts Drives: 2009 135i Join Date: Dec 2010 Location: Dallas,Tx iTrader: (0)	Not sure bought the car used. 38k miles. I will change them and see. Thanks.
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11-13-2011, 05:55 PM	#5
tofu- Banned 87 Rep 2,854 Posts Drives: 335i Jet Black/Coral Red Join Date: Mar 2010 Location: nyc iTrader: (4)	I had the same problem on a different tune. Was my ignition coil. So yeah, check both
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11-13-2011, 06:06 PM	#6
mithiral67 That guy 117 Rep 5,740 Posts Drives: 2015 Cayman GTS Join Date: Jun 2008 Location: Chicago Burbs iTrader: (4) Garage List 2015 Porsche Cayman ... [0.00]	yea, my car has 36k (i bought new) with 2 hpfps, new injecters under recalls and standard maintenance and they never changed my plugs.
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11-13-2011, 06:23 PM	#8
Bakeme521 Some say... 239 Rep 4,296 Posts Drives: Fresh Join Date: Mar 2010 Location: Baton Rouge n NOLA iTrader: (12) Garage List 2007 BMW 335i [8.24]	had the same problem, had one bad coil. Changed it and it was fixed. On a side note, do you feel strange throttle oscillations when putting it to the floor? __________________ I have exhaust and an intake...
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11-13-2011, 07:43 PM	#10
ducati955 Lieutenant Colonel 90 Rep 1,717 Posts Drives: lifted tacoma on 38's & ducati Join Date: Sep 2006 Location: long island ny iTrader: (2) Garage List 2007 BMW 335i [10.00]	throttle oscillations? what exactly does that mean? __________________ car totaled out !!AW335i, oem aero lip, m3 csl rims, oem m3 sides, vorst csl carbon trunk, tinted, lowered on H&R sport, AR DP's, Bastauck dual exhaust, BMS intake, etc NEW RIDE white GTR!
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11-13-2011, 07:55 PM	#11
nitehawk Lieutenant Colonel 102 Rep 1,903 Posts Drives: e92 335i 6MT Join Date: May 2011 Location: Toronto iTrader: (15) Garage List E92 BMW 335i [9.00] E92 BMW 335i \| Retired [10.00]	Same thing here...cylinder 6 misfires at WOT on S2+. Original plugs with 35k miles. Plugs will be changed next week. Hopefully, that will fix it. No issues running S1
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11-13-2011, 08:50 PM	#12
Pseudo Nim twinborific 119 Rep 4,836 Posts Drives: fast, sometimes slow Join Date: Nov 2008 Location: i am a citizen of the world iTrader: (9)	If your car is still under warranty, did you just bring it to the dealer with the tune installed and the code thrown? Or did you pay for a plug change? Since there is no way to throw the misfire on stock/stg1/stg2, any idea if the load placed on the plugs will EVENTUALLY manifest itself on the stock map so that it can be warrantied? __________________ Doko ni itemo, hito wa tsunagatte iru...
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11-14-2011, 01:41 PM	#16
Brey335i Banned 113 Rep 4,771 Posts Drives: e46 ///M3 Join Date: Oct 2009 Location: Austin, TX iTrader: (11)	A fresh set of plugs is never a bad idea
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11-14-2011, 02:24 PM	#17
ECSTuning New Lifetime Replacement Policy 821 Rep 11,738 Posts Drives: Independent Tuning Specialists Join Date: Jul 2008 Location: Ohio iTrader: (18)	I'm with everyone else, first thing we look at on our 335i when she miss fires is the plugs. ECS Tuning
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11-15-2011, 10:22 AM	#18
aramsey80 Private 3 Rep 78 Posts Drives: 2009 135i Join Date: Dec 2010 Location: Dallas,Tx iTrader: (0)	Changed the plugs and the car runs great!! Thanks.
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