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BMW 3-Series (E90 E92) Forum
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Can I repace just one injector??
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11-05-2019, 10:32 AM | #45 | |
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I asked you a question (post #38), still waiting for your response. |
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11-05-2019, 11:00 AM | #46 | |
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Hey buddy sorry I missed that question. My notifications go to my junk mail even though I have redirected them to my inbox repeatedly. No I have not inquired about the rebuilt process. That is a very good question. Not a bad idea to call them and find out. I bet it is similar to what FCP is doing. And if it’s not that’s ok too. I figured this way, if my 12 year old index 1’s that have 70k miles on them are all doing fine except for 1 of them of course then the odds are good that any index 12 that should have improvements in design should serve me fine for probably many years to come. Also I bet a lot of these injector supplies must be coming form BMW warranty replacement many of which are perfectly fine to start with... In regards to your other question, my car engine hasn’t blown up either. Lol! Again I have had 2 of these N54 engines a 2010 535i and now this 2007 335i and have done all the maintenance on them myself. Im 53 years old Have own many cars over the years and have done all my work myself. I’m pretty in-tuned to an engine running right and one that does not. I measure my fuel economy every tank full (my ocd) currently this N54 is running perfect and I will keep monitoring it and will be the first to report if something fails to give everyone a heads up. I’m not shy about admitting it if I’m ever wrong... For now everything is perfect! Last edited by Salzamani; 11-05-2019 at 11:10 AM.. |
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11-21-2019, 12:10 AM | #47 | |
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02' E46 S54 M3 6MT OEM+, Apex FL-5,
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11-21-2019, 07:33 AM | #48 |
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11-21-2019, 08:19 AM | #49 | |
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At this point.....I think it's safe to say that there are absolutely no issues with mixing in an index 12 injector with other previous index numbered injectors. |
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Wolf 3352340.50 TheMidnightNarwhal2651.50 |
11-21-2019, 10:09 AM | #50 |
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02' E46 S54 M3 6MT OEM+, Apex FL-5,
RIP 09' E93 N54 6MT, Smarttop, Lux V5, JB4 G5 ISO, BMS DCI, Black ER CP, Tial BOV |
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11-21-2019, 11:36 AM | #52 | |
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+1 here too! |
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11-21-2019, 12:11 PM | #53 |
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Yep, when I put in my new injector a few weeks ago...it slit ride in, no issues at all. Just make sure you install it right after you pull the metal cap off of it so that the seal doesn't expand before you get it in.
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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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11-21-2019, 03:09 PM | #54 |
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Thank you so much.
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02' E46 S54 M3 6MT OEM+, Apex FL-5,
RIP 09' E93 N54 6MT, Smarttop, Lux V5, JB4 G5 ISO, BMS DCI, Black ER CP, Tial BOV |
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11-22-2019, 12:53 PM | #56 |
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Just weighing in real quick cuz i found myself in this exact same predicament. 07 335i 140k trouble free miles on my Index 1 injectors.
Well i just installed new turbos and the car was off the road for about 2 months while i was messing around with everything. When i fired the car back up after everything was done, i had a dead miss on cyl 6. Determined it was an issue with the inkector sticking and a buddy of mine happened to have 1 brand new index 12 laying around he didnt need. He gave it to me for free lol. Anyways i looked up the index issues and saw everyone saying oh no dont do it and others saying they had mixed injector indexes with no issues. So i just sent it, i stalled the single index 12 and it works great in sync with my 5 other index 1's lol. No issues at all with mixing indexes in my case. I will eventually buy a bunch of used index twelves off a totalled N63 vehicle or something so i have 8 more index 12 injectors to swap out my 5 remaining index 1's i.e. 3 extras in case i ever need them.
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01-23-2020, 10:08 PM | #57 | |
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Another mixed injector success story
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03-20-2020, 02:30 PM | #59 |
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Drives: 2013 E92 BMW 335is
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A thought: If I have one bad injector in each bank, say 1 and 4. What's worse:
-leaving it until you can afford/decide to stomach the $1388 for a whole set. Annoying. -replace the 2 bad ones, in which case you'll have mixed but well-performing injectors. Performing they way they should. Whether they perform the exact same, who knows. But they're all new. I feel like having non-leaking injectors that are mixed is better than same # leaking ones. A leaking injector has wacky/unmatched flow rates too. Another thing to consider, your oil dilution from running leaky injectors vs non-leaking mismatched ones.
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03-20-2020, 04:15 PM | #60 | |
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The real risk with misfires and bad injectors is if they are leaking and ignored/not replaced it can actually deform the hole in the head that the injector is seated into. If that happens, even replacing the injector later properly with new seal and coding can result in constant misfires and leaking at which point your head is no good. Thats what you reallyyyy want to avoid
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02-10-2021, 08:54 AM | #61 | |
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does it still work
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02-10-2021, 04:58 PM | #62 | |
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02-10-2021, 06:30 PM | #63 | |
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Be sure to read this whole thread. There is a lot of key information. |
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02-10-2021, 06:41 PM | #64 |
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I see no need for all the injectors to be matching other than OCD. Speaking from experience, my car has 4 Index12s and 2 Index10s. (previous owner's decisions) I ended up swapping my engine for one with less kms that also burns less oil. Discovered when I went to program the injectors that all 4 of the Index12s weren't coded. After coding them properly the car ran extremely smooth and no longer made a loud raspy noise on cold start and low rpm moderate load.
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02-10-2021, 08:51 PM | #65 |
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02-10-2021, 10:42 PM | #66 | |
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