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BMW 3-Series (E90 E92) Forum
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NOx Map-out/Delete vs NOxEM
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10-09-2019, 04:48 AM | #23 |
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Following this with interest.
Have a 2007 330i N53, what are the best plugs to use on a standard car, my local motor factor has quoted NGK ZKBR7AP-HTU which are 3 prong plugs. buying a set today and would like to hear what you have used what BMW use, (I have asked my local main dealer they use NGK but would not tell me code or how many prongs) |
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10-09-2019, 03:14 PM | #24 | |
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10-10-2019, 12:38 PM | #25 | |
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10-11-2019, 07:09 AM | #26 |
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Thanks a lot Will! I read your posts...just wanted to double check (that the 3 modes worked after nox delete and decat..) and know your remap is maptech...so I will try to speak to them
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10-11-2019, 05:30 PM | #27 |
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My NOXEM has 4 screws on the cover, does that not hold the cover?
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10-11-2019, 11:55 PM | #28 | |
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the 4 screws are there to hold the black box together...what I think is more important is the seal (how long does your white silicone last in the real conditions in a shower bath?) see a picture of original bmw nox herebelow...this is what I think is good industrial quality build...after more than 10 years on the road and it was definitely watertight...it was a challenge to open it...the first level of black seal kept the body and cover firm together..and inside- everything suffused by transparent elastic insulating mass; so I guess the electronic part would survive even very long washing machine program :-) ....compared to noxem board covered by kind of a of cheap chinese asphalt applied in a thin fragile layer... Last edited by jirka330i; 10-12-2019 at 05:48 AM.. |
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10-12-2019, 03:43 AM | #29 |
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Think I'm going to get the OEM nox.
Anyone know what goes wrong with the original nox sensors? I wonder if its a simple mosfet fail or a (more likely) aged sensor in which case perhaps replacing the sensor head is possible... Edit what is that component bottom right, looks like it could be a battery? |
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10-12-2019, 05:10 AM | #30 |
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I don't think it's a battery, if it needed to save some data for power-loss situation thats done with eproms I think.
I might put loads of silicon grease on my NOXEM when we install it It does seem like it's closed shut for good, can't even see any gap between plastic and metal. Re original NOX sensors they just last for a given mileage, like 100k. Sensor is the problem, not electronics, sensor simply clogs up more and more, or so I read. Mine is like that. INPA shows Offset value outside of range. Also it reports over 200ppm of nox when driving, not sure if that's supposed to be so much.
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10-12-2019, 03:03 PM | #32 | |
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10-12-2019, 03:52 PM | #33 |
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What I read was 100k average in km. That translates to 62k miles I think.
But all that is just average. What probably matters is what was going on with the car, was he driving a lot with some codes causing to burn more fuel (and clog up the sensor sooner) or with cat regen mode kicking on often yet never finished because it was driven in city mostly and rarely highways. Just my guesses there.
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10-12-2019, 05:28 PM | #35 |
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From everything that has been said it seems that the most reliable options (subjective) in order are:
1- Map-out 2- NOxEM 3- OEM NOx NOxEM seems to have some quality issues, yet some have also had great success! Map-out seems better as it has no sensors/ecu etc yet no remapper has confirm all 3 stages in any my emails! I'll call Map-tech and see whether they'll confirm the 3 stages. |
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jirka330i24.50 insomniscient0.00 |
10-13-2019, 01:14 AM | #36 |
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This is probably a weakness of early oem nox (generation 01...02..) and I heard that in some countries (Germany...) BMW garages were exchanging them at a courtesy prices; the new oem nox generation from continental is 05 and is said to last much longer (150tkm or so). As far as I know from the other side ...VAG Group uses bosch nox sensors wich are designed to last 300tkm
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10-13-2019, 01:16 AM | #37 | |
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10-13-2019, 03:25 AM | #38 | |
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My 2012 n53 is one of the last n53 engines so presumably latest sensor but still failed at 65k miles. |
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10-13-2019, 03:43 AM | #39 |
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a friend of mine (e92 n53 2009) who lives in CZ but was going to a bmw garage in regensburg where they changed him (already outside a warranty) both hpfp and nox sensor at a fee below 100eur. I have myself n53 2009 and nox sensor was generation 01 so I guess yours would be generation 02 or 03....which was probably failure too. The info on generation 05 came from my mechanic and probably comes from some internal materials. The info about bosch nox sensors comes from a vw mechanic as they do not enjoy such a great business on exchanging that part...
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schriss36.00 insomniscient0.00 |
10-13-2019, 05:52 AM | #40 | ||
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Aged sensor - you can buy the sensor separately,you need a 8 wire sensor and stainless crimp clamps... in Germany there used to be a company called NOX sensor shop and they sold a kit with all the bits.. |
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10-13-2019, 05:54 AM | #41 | |||
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They also respond to ultra sonic cleaning |
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10-13-2019, 05:58 AM | #42 | ||||
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I doubt any will confirm it, they do not have the in-depth knowledge or the engine and the ecu. Please make sure you have inpa and understand how to reset adaptations.. adaptations will also cause issues with running all 3 modes.. msd80 is ultra sensitive, also confirm which firmware you are running bimmerproffs have a really good page on tests they have do e with different firmware. |
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10-13-2019, 06:01 AM | #43 | |||||
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The factory sensor n53 is always continental |
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10-13-2019, 06:06 AM | #44 | ||||||||||||||||||||||||||||||||||
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What they are claiming is 10% improvement in isolation on the nox system in stratified mode.. however this is isn't the same as a 10% over all improvement they very carefully worded that and didn't actually state any true figures relative to economy. In my opinion by delaying the nox cat regeneration they are improving over all economy by an Incredibly small amount. The best solution has to be removing the restriction of the nox cat. |
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