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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Cylinder 2 & 3 misfire.......



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      07-09-2009, 06:48 PM   #23
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Quote:
Originally Posted by 645Nm View Post
Mod number #3
So you have the AR catted DPs?
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      07-10-2009, 09:34 AM   #24
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Quote:
Originally Posted by cstmx_ryder View Post
Is cylinder 1 towards the front of the engine or towards the back........LOL.
1 - Front of Vehicle
2
3
4
5
6 - Closest to Firewall
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      07-10-2009, 10:38 AM   #25
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Quote:
Originally Posted by scalbert View Post
1 - Front of Vehicle
2
3
4
5
6 - Closest to Firewall
Hold on a second. O-cha is saying the opposite in the other thread?
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      07-10-2009, 10:56 AM   #26
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Quote:
Originally Posted by Former_Boosted_IS View Post
Hold on a second. O-cha is saying the opposite in the other thread?
The difference is where the front of the engine is located. From what I have seen, (B1) Bank One contains cylinders 1, 2 and 3 and is the set towards the front of the vehicle.
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      07-10-2009, 11:03 AM   #27
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Quote:
Originally Posted by scalbert View Post
The difference is where the front of the engine is located. From what I have seen, (B1) Bank One contains cylinders 1, 2 and 3 and is the set towards the front of the vehicle.
Can you post a picture with the cylinder numbers on them? O-Cha said the exact opposite here:

http://www.e90post.com/forums/showpo...29&postcount=4
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      07-10-2009, 11:04 AM   #28
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I'm at 25K miles and haven't had that problem yet. How often do you get the misfires?
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      07-10-2009, 11:10 AM   #29
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Quote:
Originally Posted by Former_Boosted_IS View Post
Can you post a picture with the cylinder numbers on them? O-Cha said the exact opposite here:

http://www.e90post.com/forums/showpo...29&postcount=4
I'll pull up the TIS diagrams tonight and verify/post them. Granted, not the same engine but same family:

http://www.bimmerfest.com/forums/sho...73&postcount=6

And the cousin engine:

http://wiki.answers.com/Q/What_are_t..._M60B40_engine

Note, in both cases the number 1 cylinder was on the accessory side which is towards the bumper.
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      07-10-2009, 11:15 AM   #30
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Quote:
Originally Posted by scalbert View Post
I'll pull up the TIS diagrams tonight and verify/post them. Granted, not the same engine but same family:

http://www.bimmerfest.com/forums/sho...73&postcount=6

And the cousin engine:

http://wiki.answers.com/Q/What_are_t..._M60B40_engine

Note, in both cases the number 1 cylinder was on the accessory side which is towards the bumper.
That was my impression as well and I operated around that. I am just confused now because O-Cha indicated the opposite.
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      07-10-2009, 02:05 PM   #31
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Quote:
Originally Posted by Former_Boosted_IS View Post
Hold on a second. O-cha is saying the opposite in the other thread?
+1, was he kidding around? LOL

Quote:
Originally Posted by scalbert View Post
The difference is where the front of the engine is located. From what I have seen, (B1) Bank One contains cylinders 1, 2 and 3 and is the set towards the front of the vehicle.
I thought the front of the engine would be at the front of the car near the front bumper? At least that's what makes sense to me.........

Quote:
Originally Posted by dzenno View Post
I'm at 25K miles and haven't had that problem yet. How often do you get the misfires?
I'm right around 25k miles as well........Just started getting the misfire codes last week, I'd say 3-4 times in a week and a half.

Quote:
Originally Posted by Former_Boosted_IS View Post
That was my impression as well and I operated around that. I am just confused now because O-Cha indicated the opposite.
+1
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      07-10-2009, 02:08 PM   #32
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I was this close to swapping the coils until I saw two posts that said the opposite, as far as where cylinder 1 is located...........

Hmmmm.........
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      07-11-2009, 07:03 AM   #33
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Quote:
Originally Posted by cstmx_ryder View Post
So you have the AR catted DPs?
I run stock cats.
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      07-11-2009, 07:13 AM   #34
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Replacing the sparkplugs or coils every 4 months becomes very costly but it is only the beginning of many problems associated with the DPs or tempering with the original cats - irrespective of the DP brand.

From the codes in your post also check you lambda sensors - quite possibly dead by now.
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      07-13-2009, 02:20 PM   #35
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So any answer? Is cylinder 1 toward toward the tranny or nose of the car?
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      07-13-2009, 02:28 PM   #36
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same problem here but mine is cylinder 5 misfire... did it with and without the jb3 only mod i have
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      07-13-2009, 02:48 PM   #37
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Quote:
Originally Posted by Former_Boosted_IS View Post
So any answer? Is cylinder 1 toward toward the tranny or nose of the car?
Well, based on scalbert's post, I think that cylinder 1 is near the front bumper and 6 is near the firewall........Makes sense to me, so that's what I'm going with.

Bringing my car into the dealership to get it looked at regarding these problem, hopefully it's just the injectors, but could also be the fuel pump.
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      07-13-2009, 02:54 PM   #38
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Quote:
Originally Posted by cstmx_ryder View Post
Well, based on scalbert's post, I think that cylinder 1 is near the front bumper and 6 is near the firewall........Makes sense to me, so that's what I'm going with.

Bringing my car into the dealership to get it looked at regarding these problem, hopefully it's just the injectors, but could also be the fuel pump.
We need to know for sure though. Scalbert and O-Cha are fairly knowledgable on the car, so we really need a difinitive on this one.
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      07-13-2009, 03:17 PM   #39
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Quote:
Originally Posted by Former_Boosted_IS View Post
We need to know for sure though. Scalbert and O-Cha are fairly knowledgable on the car, so we really need a difinitive on this one.
Um....that's up to someone else, I obviously don't know that's why I'm asking the question.......LOL

Anyone else??
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      07-13-2009, 03:32 PM   #40
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If this is correct #1 is closest tot he bumper and 6 is near the firewall.



Good luck.
Attached Images
File Type: pdf Pages from 2007 ENGINE MANAGEMENT.pdf (125.8 KB, 156 views)
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      07-13-2009, 03:45 PM   #41
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Quote:
Originally Posted by happy4nk8er View Post
If this is correct #1 is closest tot he bumper and 6 is near the firewall.



Good luck.
According to the attachment, Bank 1 is on the bumper side and supports what I stated. Thanks for adding the attachment.
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      07-13-2009, 04:25 PM   #42
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Quote:
Originally Posted by scalbert View Post
According to the attachment, Bank 1 is on the bumper side and supports what I stated. Thanks for adding the attachment.
+1, thanks!!

p.s. those bank 1 and 2 O2 sensors seems pretty close to each other. Is there a change that they might rub against one another? And cause our cars to throw the bank 1 or 2 senor codes?

Just curious........

TIA
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      07-13-2009, 04:26 PM   #43
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Quote:
Originally Posted by cstmx_ryder View Post
+1, thanks!!

p.s. those bank 1 and 2 O2 sensors seems pretty close to each other. Is there a change that they might rub against one another? And cause our cars to throw the bank 1 or 2 senor codes?

Just curious........

TIA
They do not move and will not touch.
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      07-13-2009, 07:10 PM   #44
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I have gotten 3 limp modes upon cold starts in the past week. I pulled the codes and got cylinders 4 & 6 misfiring. Sounds like i should get new plugs first huh? I have 23k miles with the original plugs. Running tuned for 20k miles.
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