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BMW 3-Series (E90 E92) Forum
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12-16-2019, 09:08 PM | #4 |
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Looks likely that it's injectors from looking at that list of codes
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2009 BMW 335i 6MT
*big single (eventually)* For now... MHD tuned VRSF Race IC DCI ATM exhaust |
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12-16-2019, 11:04 PM | #7 |
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12-16-2019, 11:45 PM | #8 |
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12-17-2019, 03:21 PM | #10 |
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It was misfiring on old coils and plugs, then swapped it out, still had occasional cold start misfires, put some Techron thru the system made it a little bit better for few 100 miles but now it's just has seemed to given out. Wierd noise on startup as well I'll post a video here shortly
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12-18-2019, 12:25 PM | #11 |
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Do you have any way to run a data log and monitor your fuel pressures? It's odd (impossible?) to have 4 injectors crap out all the exact same time.
I'm guessing you have a fueling issue....
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2007 335i, BMS DCI, BMS Chargepipe w/Tial BOV, ARM Catless Downpipes, silicone inlets, Bilstein B12 Prokit Suspension, Whiteline subframe bushings, Front/Rear M3 control arms, G-Plus FMIC, Stage 2 LPFP, Custom E40 tune by Justin (V8Bait), xHP stage 3 transmission flash, RB Two Turbos....10.90 @ 128mph
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12-18-2019, 08:27 PM | #12 |
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Put in old coils, this is a cold start, let it run for about 5 minutes and now it seems to be running fine. But every time it starts in the morning it will misfire shake, give off a ton of smoke and a lot of fuel smell. Afr 2 is reading 20 on JB4 while afr1 is reading between 14-16
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12-19-2019, 08:36 AM | #13 |
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After your car sits all night.....pull each spark plug out in the morning (don't start the car first). If any of your plugs are wet, or smell like fuel.....you have a leaky injector in that cylinder(s). If they are leaking....replace them.
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12-19-2019, 09:27 AM | #14 |
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My assumption as well. Car drives fine after about 4-6 mins on a cold start with misfires and excessive fuel smell, but after things are warming up there's no issues.
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12-19-2019, 06:14 PM | #15 |
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All these signs point to leaking injectors
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2010 e90 335i LCI - xHP - Mishimoto - BMS - CPe - Turbosmart - MHD - Eibach - Koni - VMR - LUX
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12-19-2019, 09:23 PM | #16 |
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12-23-2019, 07:42 AM | #17 |
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Any suggestions for cheaper injectors in the meantime just to run the car on stock tune and use it for daily driving ?
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12-23-2019, 08:14 AM | #18 |
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12-23-2019, 10:04 AM | #19 |
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I mean there are lower index's correct ? Don't necessarily have to be index 12 just for everyday daily driving
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12-23-2019, 10:06 AM | #20 |
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12-24-2019, 10:56 AM | #21 |
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Index 12 is the latest version. I wouldn't recommend swapping in anything other than Index 12, all previous indices were faulty.
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2011 E92 335is, Space Grey/Coral Red, 6MT.
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