Here's Why You're Getting Misfires
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- čas přidán 15. 07. 2024
- BMW loves to push the technology envelope with their engines, and that's a good thing, but you'd think they would at least get the basics right after all these years!
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OTC 5609 Cylinder Leakage Tester Kit:
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Professional Injector Cleaning:
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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. - Auta a dopravní prostředky
And ultimately the dme mosfets fail if you’re getting a persistent misfire
Oh yeah, I forgot to mention that one!!
@@50sKid what that means and how can I fix it and remember 5 to 10 minutes depending how cold it is outside it goes away another thing I forgot to mention on cold start If I keep my foot on the accelerator between 1000 to 1500 remember runs good but if I let it idler the misfire get so bad that the dme shuts off the injector and the check engine light comes on and I have to shut the car off wait a couple of seconds and start it and the light goes off.can you please help me out if you can and I will really appreciate thank you very very much.
I'm so happy you're back and uploading content dude. You don't realise how many of your vids keep my daily pre face-lift sedan on the road. You are Jesus of the BMW community.
You look like you lost some weight. Looking good. Thanks for the video.
Yeah like 55 lbs so far! Thanks
@@50sKid Shoot, I need to get on that level. When are you going to make a video on your plan? 🤣
@@50sKid congrats on the wright loss. That much really help when sliding under the cars.
Always informative keep up the good work
Informative video. Thanks for sharing, Jason.
Great informational video!!
i learn something on every video you put out. Thank you!
I leaned a lot
Thank you
Wow. Good stuff Jason!
Geat guide!
very informative, thank you
It's also been used in the Z4 through 2016, and the 1 Series M though 2013, as well as F1 7 series though 2012. ))) Very prolific engine )
Life saver
E46 330i here, things which contribute to M54B30 misfires:
O2 sensors
MAF sensor
cam position sensors
crank position sensors
DISA valve
VANOS solenoid
VANOS seals
fuel filter
fuel pump
injectors
spark plug
ignition coil
idle air control valve
crankcase ventilation system
So, with most of the things you listed, such as cam position sensors and MAF sensor, you might get codes for misfires, but a bad MAF sensor wouldn't cause a hard, constant misfire. I think that was more or less what I was going for in this particular video--causes of hard misfires. In my head I tend to separate misfires into two categories... hard misfires where you can physically feel a cylinder missing and you hear it and you are down on power, and then soft misfires which is more like "rough running" where you might feel a momentary hiccup or something while idling. When I see codes for vanos and misfire and it's idling fine, I'm not going to go right in and swap coils and plus you know? I know to go after the VANOS problem and eliminate that and then see if the misfires return. Good list though!
good stuff! 👍
Great video, mate. Thanks for the info; certainly the worst thing is when there’s a compression problem that causes misfires 😖. I hope there’s nothing wrong with your E90, and it’s just an info video. 😅
Also I’d like to know what’s new with the E46. Have you used it lately?
Greetings 🔧👋🏻
It’s my daily driver. I’ve filmed videos on repairing wiring in the trunk as well as replacing the alternator voltage regular. They will be up soon. Also have a few more planned including a big interior refresh.
@@50sKid that’s so nice to hear, man. I’m a E46 lover, in fact I got my lovely 330Ci thanks to your videos, so I’m looking forward to watching those videos coming.
You’re cool, 50sKid! 🔧🤘🏻
you are the best go a head
At 1:42 you said tip of this injector and it is the tip of the spark plug lol all good bro I’m trying to find my misfire rn it’s only ing the morning
Still chasing a misfire with my e46 M54, looking at the injectors real soon!
Rarely injectors on that car. More likely blown head gasket. First swap coils and plugs, then do compression and leak down tests
C est M539 Restauration qui m à fait connaître ta chaîne mais pas l algorithme !
I had a misfire that took 2 years to figure out, after hard acceleration. Ended up being the MAF air flow gasket to the flexible hose side, gets pushed in when dry, lub with silicon paste each time you disconnect to get it to stay. (M54)
Interesting, I believe you would have also seen that show up in your fuel trims
And nothing has happened to your motor?
🙏🏻
More kia Sportage vids lol I've been watching them like crazy trying to learn what I can off them I still have so many questions 😅
Haha that car is gone now
Wish I'd seen this before i got rid of my 335i convertible 🤔
I have an 04 330i and I did what do to check coils and sure enough #5 is bad , which coils do you recommend out there ?
Just came here to say that I got a new bmw but this man has helped me with my e46 and I’m greatffull my sister owns it now and it runs strong 💪 sorta lol 😂
Glad I could help!
what about my 2000 323i sedan with m52tu engine? does it have this issue?
Top
Index 1s and going strong
Haha
This seems to be my issue I have so many issues with my bmw since I replace oil pan gasket 325xi. Pain the a** getting front diff. out. Also along with valve cover&gasket all the plugs and coils. So I got all that done put evrything back together. Started up got mad shaking at first then it cleared up but had a funny smell. Super sweet checked oil and saw no anti freeze. So I tool it out for a spin everything was running smooth till I hit the gas and got up in rpms. Then boom check engine light loss of rpm and was bogging out. Got home switched coils made sure spark plugs were 18lbs torque which I thought was absurd. Any help would be appreciated would be nice to see that thing running again. HEEEELLLLLPP I WANT MY BEAMER BACK!
Not sure how I can be of more help than I was in this video. Work the problem. Switch the components one at a time until you find the bad one.
People blame the rough running at cold start on the vanos solenoids on the front of the engine too. Thoughts on this?
You’d get codes if those solenoids went bad in any way as far as I have learned!
@@50sKid you should get codes if the coils and/or injectors are causing misfires correct? Asking because my car runs slightly rough at idle at cold start for 10-15 seconds with out any codes or check engine lights. Then otherwise runs perfect. Thinking it might be the PCV tho. My car has the n52.
@@toothferrin make sure you check vacuum leaks and check the data on fuel trims the 50th kid has a real good video on fuel trims it will help you a lot on pin points ur problem
Great content as always! How do I know if I have miss fires without a diagnostics tool?
Your check engine light will be flashing when you have a hard misfire, your engine will feel like it’s wobbling, and you will be down on power
@@50sKid what if at cold start I only feel the engine wobbling and no check engine is being shown up?
I replaced the spark plugs, MAF, DISA valve O ring and the hose from MAF to intake and I got rid of HARD misfires and loss of power, but now from time to time, during cold start, I feel like there are some misfires...Car runs great, except these random misfires. Diagnostic showed me now misfire 1 and 2, but with no Check engine light on.
@@sandoo798 Yep I have similar issues as well and got a code for a cyl 6 misfire once. I am working my way through all the issues I highlighted in this video. I suspect it's a leaking fuel injector but waiting on my supplier to get them back in stock.
@@sandoo798 You know it could also be VANOS related. I am seeing that some common reported symptoms related to VANOS are:
1. Loss of torque and power in the lower range
2. Hesitation or slow reaction time when you press the peddle
3. Idle hiccups or a constant rough idle
4. Slow cold starts
5. Limp mode after acceleration
"Idle hiccups" is exactly the problem we're talking about here. But as far as I know, you should be getting some kind of codes if you do have VANOS related issues. At least I think. Not being a professional technician, I don't have a huge wide experience with these issues on different cars. I only know what I read.
@@50sKid Yeah I read about VANOS, too. But there is no error code in ECU memory so I believe it's not related to VANOS. One thing I'm not sure about is if after changing MAF for a functional one, I need to get someone to reset anything in ECU? The MAF I got is a used one...
I had a misfire under boost. Turned out to be slightly weak battery
Interesting!
If you decided to swap your engine for something better what would be your first choice? Is the m54 a good enough engine to rebuild and set it up for a turbo or is there a better choice engine to put In an 02 325i e46? I'm planning for v8 manual swap, a rebuilt 330i manual that's been beefed up and sporting a turbo or a supercharger somehow comes within reach. I'll admit a 325i 4 door isn't as nice as an MSeries but 3 series e46s are my favorite car. I saw an add on Craigslist for a complete m3 engine for 3800..just the engine. From what I've gathered there's not that big a difference from the inline 6 m3 and the inline 6 330i. Turbo, stronger components etc. I'd rather build my own car and engine than dog out a new M series and treat it like it's disposable, total it and have a new one the next day...thanks dad.
An S54 is the best BMW engine swap you can do in the E46 frame. There's definitely a huge difference between that and an M54B30. If you're going to boost an M54, you'll probably want to go with different pistons to lower the compression ratio so that you don't get detonation, but depends on how much boost you're looking for. There's tons of info out there but you gotta do a deep dive.
Is it possible a leaking injector can cause the EKP fuel pump module error at idle?
No, I believe the fuel pump modules are known to go bad but I haven’t looked into it in depth yet
Couldn't dirty intake valves from carbon buildup also cause misfires?
I doubt that the build up would be so severe that it would cause a hard misfire. The intake passage would have to be extremely restricted. But, I suppose it could cause rough running. I was gonna mention it but decided against it. But, I will clean mine real soon and I’ll relate the before and after.
Hey you! Sales of our injectors have dropped!
Oh, OK, hold on, version 12 is on the way!
I think you’re onto something there
Hi 50skid. Can I ask a question.
I have a 330ci with a leaking transmission pan gasket.
If I change the transmission fluid will it cause my transmission to die?
no
I hear people talking about all this thing that can cause a miss fire but Noone hardly talks about bad lifter given you misfire on cold start specialty on m52 engines have anyone heard of this
That's an interesting possibility. If the lifter is collapsed the valve wouldn't be opened fully and wouldn't let in the correct amount of fuel/air mixture. Yeah that's a good suggestion.
Thank you for your reply. I have a video of the sound of engine. Could you listen and tell me your opinion?
It's driving me nuts
I did all that on my 330 xi e46 replace injector spark plugs coils cover disa all new vacuum h9ses new fuel pump and filter and still getting cold start misfire on cylinder 3 until it warms up then it runs fine did compression test good too new intake gasket any suggestion
Maybe Cylinder head gasket
On my E46 the CCV broke twice withing two years, that gave me a missfire on cold starts sometimes, mostly on cylinder 2. That also lead to a lot higher oil-consumption than usual.
What was the cold compression reading?
@@50sKid don't remember the exact reading but they were all about the same and like I said once the car starts getting hot it goes away and run like a champ someone mentioned the lifter that might getting stuck open until it gets warm am planning on doing since u got a video on lifter.what do you think and by the way thank you so so much on taking ur time and answering you don't know how much appreciate it.sinse I always watch all ur video it could be changing a light bulb and I still watch it cause nobody makes videos so detailed like you do thanks. Ohh am doing the oil pan gasket on my 330xi since I own two am going to follow the video you made on the x5 wich shoul be close thanks
These injectors are calibrated to the engine, and calibration values are stored in the DME with the scan tool... Can't just leave them swapped, they all flow different...
Thus the reason why I printed on the screen that you need to recode them in INPA
@@50sKid didn't catch that.. maybe because my subtitles are off...
@@AlecKristi at 6:40
As a technician during these recalls we reused the %!ck out of those couplers due to limited availability during peak injector replacement, but I agree independents probably didn’t replace them always
Yeah I didn’t want to say the dealers wouldn’t have replaced them because I’m sure that was automatically part of the replacement job
Question!!, i have a 2002 325i e46. P0339 code, mechanic couldn't figure out what it was could it be bad wire harness like teeth being corroded or covered in oil from a leak ?? Please help id much apreciate it
Crankshaft sensor problem. Either needs to be replaced or it’s a wiring issue.
You can gain easy access from below the vehicle if you remove the splash shield. You will see the sensor beneath the starter motor. BMW recommends that you replace the splash shield bolts but most people reuse.
If you have a bad injector, you have to replace all three in the bank.
That's only if the other injectors are index 11 or 12. The newer injectors are not backward compatible within the same bank with older indexes.
Does this go for e46 models too ? I replaced all my coils and plugs and still have multiple random misfire codes. And my e46 at cold start makes this weird squeeling/chirping noises for like the first 15 minutes.
PCV regulator valve.
@@AlecKristi I replaced the entire ccv, and the valve cover gasket too. Forgot to throw those 2 in there.
@@AlecKristi and I replaced the vaccum lines, I actually started hearing those noises once I replaced the valve cover gasket. It sounds like its coming from the head gasket area.
@@frankmfeb13 in this case I'd look to vanos next... The only random misfires I had on e46 were related to coils and pcv (which had symptoms very similar to yours).
@@AlecKristi thank you
too many fake injectors on ebay, I would only buy from somewhere reputable that does lifetime warranty
Agreed!
I blew 5 cylinder and rode it forever it was fucked thing would barely move. Fixed it up tho