Now what?

Adamteee · 07-08-2011, 07:15 PM

So I had a problem with the downpipe install, consensus said o2 got messed up and figured hey, car has 70K miles why not replace all 4 and fix my problem. I get all of them in, and start my car and low and behold, I still have a misfire and engine codes 11300 and engine misfire cylinders 1-3. wtf?

creaminz · 07-08-2011, 09:31 PM

when was the last time you replaced your spark plugs? injectors?

Adamteee · 07-08-2011, 10:49 PM

Injectors/Plugs were replaced in April. I'm thinking of throwing the old downpipes back on and seeing if the problem goes away but I think I'd be wasting time and a lot of aggravation then.

tibra1 · 07-08-2011, 10:53 PM

What tune are you running?

Adamteee · 07-09-2011, 10:28 AM

I'm running procede v5 6-14 maps.

Brey335i · 07-09-2011, 11:23 AM

Did you make sure you put the right sensors in the correct downpipe?

Adamteee · 07-09-2011, 11:29 AM

Yeah I went through that on the first downpipe install, the guy switched the rear ones and I swapped them back around when I had time and I still had the intermittent misfire, and procede said it was the o2 and cylinders 1-3 misfire. got all 4 o2 and put them in and still have the misfire and code 11300.

Dr_Dirt · 07-09-2011, 11:41 AM

Do you have the latest harness changes?

Adamteee · 07-09-2011, 11:43 AM

Yeah I thought of that when it first started misfiring and did it and it kept doing it.

tibra1 · 07-09-2011, 11:53 AM

Quote:

Originally Posted by Adamteee

I'm running procede v5 6-14 maps.

Hmmm

07-08-2011, 07:15 PM	#1
Adamteee New Member 0 Rep 28 Posts Drives: 335i Join Date: Jul 2010 Location: Mcguire AFB, NJ iTrader: (0)	Now what? So I had a problem with the downpipe install, consensus said o2 got messed up and figured hey, car has 70K miles why not replace all 4 and fix my problem. I get all of them in, and start my car and low and behold, I still have a misfire and engine codes 11300 and engine misfire cylinders 1-3. wtf?
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07-08-2011, 09:31 PM	#2
creaminz Major General 549 Rep 7,705 Posts Drives: E90 LCI Join Date: Sep 2005 Location: So. Cal iTrader: (33)	when was the last time you replaced your spark plugs? injectors?
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07-08-2011, 10:49 PM	#3
Adamteee New Member 0 Rep 28 Posts Drives: 335i Join Date: Jul 2010 Location: Mcguire AFB, NJ iTrader: (0)	Injectors/Plugs were replaced in April. I'm thinking of throwing the old downpipes back on and seeing if the problem goes away but I think I'd be wasting time and a lot of aggravation then.
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07-08-2011, 10:53 PM	#4
tibra1 Banned 129 Rep 6,773 Posts Drives: 2011 ZCP M3 - 2007 335i crashd Join Date: Apr 2009 Location: NYC iTrader: (4)	What tune are you running?
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07-09-2011, 10:28 AM	#5
Adamteee New Member 0 Rep 28 Posts Drives: 335i Join Date: Jul 2010 Location: Mcguire AFB, NJ iTrader: (0)	I'm running procede v5 6-14 maps.
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07-09-2011, 11:23 AM	#6
Brey335i Banned 113 Rep 4,771 Posts Drives: e46 ///M3 Join Date: Oct 2009 Location: Austin, TX iTrader: (11)	Did you make sure you put the right sensors in the correct downpipe?
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07-09-2011, 11:29 AM	#7
Adamteee New Member 0 Rep 28 Posts Drives: 335i Join Date: Jul 2010 Location: Mcguire AFB, NJ iTrader: (0)	Yeah I went through that on the first downpipe install, the guy switched the rear ones and I swapped them back around when I had time and I still had the intermittent misfire, and procede said it was the o2 and cylinders 1-3 misfire. got all 4 o2 and put them in and still have the misfire and code 11300.
	Appreciate 0 Quote

07-09-2011, 11:41 AM	#8
Dr_Dirt Major 62 Rep 1,476 Posts Drives: E90 335i 6AT Join Date: Apr 2007 Location: DFW iTrader: (1)	Do you have the latest harness changes?
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07-09-2011, 11:43 AM	#9
Adamteee New Member 0 Rep 28 Posts Drives: 335i Join Date: Jul 2010 Location: Mcguire AFB, NJ iTrader: (0)	Yeah I thought of that when it first started misfiring and did it and it kept doing it.
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