Get rid of your misfires forever! - BMW E90 DIY Fuel Injector Upgrade

The fuel injectors on the N54 engine were ahead of their time piezo-electric high pressure injectors and they never worked right and were prone to clogging and leaking. It took BMW 12 iterations to get it right (and the jury is out on whether they really did but it's the best we have at this point!). I finally found some index 12s on a car in the junkyard (my sponsor is still out of stock due to the pandemic!) so it's time to install them on the car.
CTA Tools 2250 Fuel Injector Oil Seal Kit:
amzn.to/3gXDuWG
Part Numbers:
Index 12 Injector: 13538616079
Decoupling ring: 13537564751
Injector Seal: 13537584315
00:00:00 Intro
00:02:08 Tools you need
00:05:12 Note down the adjustment numbers for later
00:06:38 Removing the old seal
00:07:19 Installing a new seal
00:09:16 Install the new decouplers
00:10:20 Remove the cowl, cabin air filter, engine cover, and strut brace
00:12:21 Pull the fuel pump fuse and run the car to depressurize the fuel rail
00:13:32 Remove the fuel lines
00:15:16 A quick story about my misfires
00:16:33 Remove the fuel injector connectors
00:16:50 Remove the fuel injector hold downs
00:17:45 Remove the fuel injectors
00:19:06 Install the new injectors
00:20:00 Reinstalling the injector hold downs
00:21:52 Reconnect the fuel injector electrical connector
00:21:59 Reinstall the fuel lines
00:22:51 Coding the fuel injectors
00:25:22 Starting the car
00:27:07 Wrap-up
This video is for entertainment purposes only. 50sKid assumes no liability for any repairs or modifications performed by the viewer as a result of the information contained in this video.

[@linkaan14]

Wish I saw this video before doing my injectors. I did not unplug the battery and the pump primed straight in to my mouth lol

[@50sKid]

Lol aww man

[@jhncvngh]

Mr Jason thank you for this video and being very lucky to find injectors number 12 in junk (hunk)yard !

[@mjojrjr6231]

Very helpful guide of installing fuel injectors, thank you very much for sharing.

[@atlantajunglepythons1744]

Hey, thanks. Your relaxed attitude makes it all seem a bit less dire. Definitely going to up my injector game soon. Might be a good combination with the valve cover gasket. Hope the new year treats you well

[@nirvanadayalall9102]

I've been following your videos on KZbin. Great stuff.

[@lp2565]

Great video, Jason. Thanks for sharing. Glad I have my E46!

[@16ats]

Love that office tshirt. Nice video as always

[@busaman1444]

putting index 12s in my N54 cleared up a lot of gremlins, well worth it

[@herrerafoto]

Awesome video as always!

[@VincentMMoore0]

Nice logo refresh, 50sKid!

[@Fungustus1]

This is a fantastic video! I will definitely be using this guide when I install my index 12s. Hopefully solve my intermittent long crank and cold start misfires.

[@ACETG-dn6ee]

Yes!!! I’m having that at the moment, did you fix it?

[@Fungustus1]

@@ACETG-dn6ee yup! It solved most of my engine hiccups. At a steep price tho... oh well all worth

[@alquehenwebb7349]

Thanks for your video iam getting ready to put my index 12 in see what happened nuff respect

[@truckie117]

Excellent video

[@maxx1nsane]

Great video.

[@jayparnes]

The Foxwell NT5XX scanner has functionality for coding injectors. Way easier to use than INPA.

[@domingodeanda233]

That was pretty damn good, thanks

[@andrewturchan6065]

Great video !! Thanx

[@dhwells679]

Great Job!!!

[@e30h26]

As others have said, awesome work on the fat loss! If your car hasn't had the recalls done, can you do a DIY on those, please? Blower motor plug and battery positive cable in the fuse box under the dash.

[@bernybrooijmans821]

Thx alot! Nice video!

[@ProperRepair]

Jason: "Here's a video on how to fix misfires, change and code injectors!" Viewers: "That's nice, but tell us how you lost weight???"

[@juanlondono7989]

Fantastic video you amazing

[@ww-go3ct]

Been following you for years with the E46 330i. I also have the E90 330i. Even the 12th revision are still crap and are constantly failing as you will find out

[@torontodahayatkurmak2184]

Great work…

[@johncadogan9450]

Index 1 were just as good still have them in my 2006 335i

[@AlecKristi]

I think how loud injectors are depends on mileage... I have 12s in my 335xi and 9s in my Z4, and Z4 is definitely louder. Got 44k miles on the Z4 and 165k on the 335xi.

[@dissolverussia4842]

Very good explanation.

[@linkaan14]

@50skid I don't know if you want us to request/suggest videos. I know you have done oil and filter. Could you do all other serviceable fluids, filters and stuff? Like diff, breakfluid, power steering. Bmw n54. Love your videos

[@50sKid]

Will do

[@linkaan14]

@@50sKid Thank you man! Love your videos. Great diy tutorials

[@damiadedapo5363]

50s kid is back!

[@micdev42]

Excellent video, thanks for posting. Quick question: do you need to grease the body of the new injector before installing in the head? Ceramic grease is supposed to be good as it prevents the SS injector body from reacting with the aluminium head. Your injectors were easy to free - I bet mine won't be!

[@fcknhellmate]

When I found out that my copart N63 had all of index 12 injectors I was sooooo happy :D Still these BMW injectors are awfully loud.

[@crossboon]

Clean the injector bore with a vacumcleaner and attach a small hose on it.

[@Telstar_1]

Excellent work, thanks for sharing this. I still have a slight rough idle for a few minutes on cold start on my E90 N43. I was considering changing out injectors, but may run some injector cleaner in the tank first. I replaced spark plugs a year ago (120k miles) and just replaced all 4 ignition coils (as one failed causing heavy misfire) this week at 130k miles. Would you recommend an injector cleaner - LiquiMoly or BG44k? Thanks again.

[@paulgilliland2992]

If people are using INPA and especially 1st time it will do a number on your battery so be fast and efficient. I was wondering if you can use inpa for module coding?

[@MarioDallaRiva]

Bravo, Jason 👏🏻 I'm curious; which fuel grade are you using in this car? Thx

[@adrianleblanc3389]

Great video! Long time watcher from the early e46 days. Question to anyone reading this, is it possible/safe to ultrasonic wash the tips by just submerging them in? I don’t want to disassemble them at all. Has anyone tried this with success by chance?

[@VegaO2k]

Great video. I have a f10 with the N53 engine with index 12 and yes they are loud, people ask me if i have a diesel car.

[@micdev42]

Hi. I have an E93 with N53B30A engine (so non-turbo). Did you change (upgrade) your injectors from index 11 to index 12? Or did it come with index 12 as standard? Reason I ask is that I've read that there is doubt about whether index 12 injectors should be used with the N53 engine. I kind of feel that they should work since the energy and flow rate values are entered into INPA so it knows the individual injector performance. Cheers from UK.

[@VegaO2k]

@@micdev42 Hi, it was upgraded by the previous owner because some of the injectors were failing early. It was done at a bmw workshop.

[@bikdesign1561]

@@micdev42follow. Can upgrade to 12 or 13 .

[@sachak]

So I hate to be the bearer of bad news. But the index 12 injectors leak too. I have replaced 4 already over the years.

[@miras170884]

Yes! I can confirm that.

[@seanpaul3050]

What about the N52 engine in regard to injectors. Are they generally okay or did bmw update the injectors on that engine also ?

[@marlongarcia5362]

Sup bro glad to see your still putting out good informative videos. I have a question for you. I've got a 2004 325i 222k miles the trans is jerking. Would you say just junk it or is it worth replacing the transmission,lmk thanks.

[@AlecKristi]

I've replaced a couple of transmissions on these, it's a piece of cake.. you can find these transmissions for less than $300us now, or even half that on pick-n-pull sale days.

[@ThisLaoGuy]

on cold start I get a puff of black smoke and a little hiccups sometimes, is that leaky injectors?

[@seanmarrero3461]

How can you tell which injectors are which ? I have a spare engine that came with everything on it and ready to swap out. Just do I can start ordering these tools so my new engine will start.

[@josesoto307]

Can u go ahead and install again after testing or do you have to replace seals

[@I3ichy]

Pls 🙏 do a Turbo e46 m54 build i need to know were the fuel pressure Regulator goes 🤣

[@jasonkalihi5603]

Hello, I too have a bad #6 injector...Why it has to be the one that is most difficult to get to I have no idea...I too also have all index 10 injectors. Are you planning to sell the 5 that were still working? If you are, please let me know. I am on a serious budget, as I just need to get this car running so I can sell it. Of course I will recommend that the new owner replaces all with index 12, but I really don't want to spend over $1800 for a full set, when I won't get that total value back out of it in the sale.

[@karlmartus7516]

Hey I’ve been watching your videos and like another subscriber asked for fluid change videos. I have been wondering if you used Top Tec 1800 ATF in a ZF transmission. I have 2003 330 / to 2006 330 and 2016 X3 xdrive . Two with 5 speeds and one with 8 speed. And if you can mix it with the ole ZF lifeguard fluid

[@FishFind3000]

I’d stick with zf lifeguard

[@shvdow3351]

Damn bro you look like a different person !

[@shvdow3351]

Them e90’s got you stressing huh 🤔 should of stayed on E46 platform lol

[@josedasilva4433]

Holy crap, I just noticed you've lost weight. Looking good bro. Excellent video

[@50sKid]

Lol thanks

[@TheCrossroads09]

Does the K+ cable suit a 2002 e46?

[@obihornchen6508]

I wouldn't run the engine with the fuel pump fuse disconnected, because the HPFP will run dry, which isn't really something you would want...

[@ademc8872]

yeah fuel system should be bled through ISTA. this is exactly the reason why so many n57 diesel bosch cp4.2 pumps are failing. people priming the system by cranking causing dry running.

[@obihornchen6508]

@@ademc8872 Yup, this was also the major reason why so many HPFPs failed on older E90s - until BMW released a software update which lets the fuel pump run when unlocking the car to build up fuel pressure in front of the HPFP to prevent dry running.

[@jayparnes]

I just let the car sit overnight to depressurize, then disconnected the battery. Minor fuel trickling out when the fuel lines were removed.

[@Built2spillrox13]

Also you don't need to pull the fuse for the fuel pump off just simply disconnect the battery and open up the gas tank filler cap,that will depressurize the fuel in the system

[@50sKid]

No it won’t, the high pressure fuel system doesn’t bleed down the pressure like that.

[@Savanahmae]

Wondering where to find the INPA software and if it costs to download?

[@cct3053]

Wich models have that injectors from factory? Regards!

[@sanosuke2999]

Would silicone help seating the injector seals?

[@50sKid]

No. No fluids of any kind should be used

[@wallylatorre8349]

FCP Euro Milford,ct

[@JoeCoool59]

What is the computer required for running the INPA software?

[@DjDestinyChicago]

Where did you get the English version or INPA?

[@F06M6]

Until BMW releases Index 13 🤠🤌🏻

[@FishFind3000]

I think they just quit after 12

[@nirvanadayalall9102]

Hi. I'm looking for parts. For my e46 bmw. At transmission. I'm in South Africa, Durban and there are no kits available. Please can you assist me with this. It's a 2005 325I with the 5 hp 19 box.

[@oriongray7712]

Where is the download for the English version of inpa that your using

[@CANNABIS9810]

Will it work on n53 272hp? e60

[@BIMMERZEITT]

My early March 2007 build 335i has original index 1 injectors. I’m at 191,000 miles now! Original turbos too. How much did you pay for the junk yard set?

[@uisperfectemail9720]

I’ve got a April build with Index 1s too125k!

[@50sKid]

$60 total I think

[@uisperfectemail9720]

@@50sKid whaaaaaat!!!!! That’s fantastic, kudos!

[@facemann_e937]

@@50sKid Bro which junk yard is this ... Shhhh#$@tt

[@micdev42]

@@50sKid USD 60 for 6 index 12's. OMG. I wish we had scrap yards like that in the UK! Retail price from a BMW dealer in UK is about £250 *each* for index 11 - and that's if you can get them!

[@mike.135i]

Are injectors interchangeable between n54 and n55 as long as the coding process is done correct?

[@Turbolungs]

They are completely different injectors

[@Jimbo1268]

Great job, dude. But with all of these BMWs, you are a clear glutton for punishment.

[@ludak83]

I enjoy the videos, but they never got it right. I had to replace my index 12 injectors after few years.

[@FishFind3000]

I guess after 12 they just gave up

[@MJCGames]

How come there are so many relatively new cars on the junkyard in america? In germany totaled 335i‘s are getting sold for 6000 € upwards, it’s upsetting…

[@50sKid]

Crazy. I dunno, I guess they become too expensive for the insurance companies to fix and people want to take the money and buy something new instead. The car then gets a salvaged title and nobody wants to own it at that point.

[@lewisfreitas]

My index 12 injectors are not loud at all

[@MichaelAMangone]

Could they be loud because they're clean? When I've cleaned and resealed old, mechanical injectors, they're always loud until they've been run for a while.

[@50sKid]

They certainly seemed to quiet down pretty quick

[@bikdesign1561]

What code will throw for this injectors faulty 😮

[@colindevlin4567]

You will start to get random cold start misfires mainly, they start to leak

[@xpo186]

How about msd80 > msd81 upgrade video?

[@50sKid]

I’ll put it on the list. It’ll be complex I’m sure.

[@crosstalktv5780]

I just ordered six used ones that were remanufactured from China but the picture he sent me , the coding numbers on each of them are all the same !! is that OK?

[@yashargholinia7440]

Did you use loctite by any chance?

[@50sKid]

On the hold down bolts? I did not. Shouldn’t be needed

[@Sadrialler]

Wow! You have lost so much weight. How did you that?

[@50sKid]

I’ve been biking 12 miles, 5 days a week since February! Thanks for noticing :-)

[@MarioDallaRiva]

50sKid I did the same a few years back. Less mass equals better performance up hills for sure! I noticed a huge difference on the bike. Also, a quality pair of biking shorts helps too 😖

[@Built2spillrox13]

One more thing,no need to mess with the ground cable and twist it around,just simply remove the ignition coil and you'll have all the space you'll need to work comfortably one last final thing that's kinda important and critical....you HAVE TO CAP OFF THE OPEN PORTS ON THE FUEL RAIL while servicing the fuel system, you dont want ANY! debris to fall or lay in those open fuel rail ports

[@mjojrjr6231]

Can I just ask about index, does it mean that index 12 is the upgraded version of index 12?

[@Bemaritohtori]

Here in Finland index 12 injectors cost 380€ (~450USD) each. OUCH

[@50sKid]

Wow!

[@obihornchen6508]

In Germany I bought refurbished index 12s from the dealer for 90€ each a year ago... now they are 128€ ^^

[@davidkaye8712]

We gonna have to rename you Junkyard Dawg. They are a goldmine.

[@fredericdescoteaux3088]

Just so you know they’re 3600$ for 6 now… not 1200$

[@HaiderAlBaali]

Hello mate Would it be possible to buy me 4 injectors index 12 and ship them to the UK? I’ll pay you immediately before you ship them. Regards

[@black_n5492]

$550 now just 24 months later.

[@oiooiioioiooioii5400]

And now they are over $400 each! Way too expensive....

[@stretch5832]

Rocking a injector is the last thing to teach your viewers… this causes the bore to warp and your screwed.

[@blakaxe]

It’s $550 today 😢

[@johncadogan9450]

you waited so long after putting new seals on.

[@nakamahaki650]

Say good bye to misfires lMao until you find out it’s a wiring issue

[@thepredator4480]

You will still get misfires but not as much.

[@XboxLil]

Too bad they cost £2000+ for all six, no wonder no one buys e90’s anymore

[@marcusrichards9607]

ahh fuel injection. BMW's biggest failure other than hiring the guy obsessed with HUGE nostrils.

[@246alfa]

Вы можете легко выбрать несколько ревизий в один ряд и проверить пьезофорсунки. kzbin.info/www/bejne/rZzcXqGYfLGIqtE BMW repairmen are very strange. They change the radiators, which serve to remove heat from the piezo. :))

[@jockesgarage6049]

do this work on N53 330 to ?