Vw Tdi P0234 Overboost
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- Опубліковано 29 сер 2024
- Follow along as we diagnose and fix this 2002 Jetta tdi with limp mode, lack of power, with P0234 trouble code.
If you would like to financially contribute to the continued production of these videos find the donate icon on my website at www.kansascitytdi.com
Heres another video on this car (Quick Bonus Tech) • Temp sensor codes
Very very wrong procedure to cleaning turbo finz,,,,
strange that I've done it 100 times. Please post lnk to your video showing the correct process. Most mechanics just recommend new turbo.
@@CoolAirVw recently 4 days ago same job done with my Octavia 1.9tdi,,iam using first wd40,then cleaning by diesel,,,,iam not using wire brush or scrubber,, because metal scratches attract carbon deposit fast,,,after diesel cleanig iam use vim bar for any oil deposit removing,,,bro. Don't use metal scrubber,,,after this part cleaning then dpf fiter line confirm cleaning compulsory,,,thanks lot,,,u r video nice,,,never mind,,,iam skoda specialist,,,any problem I will solve always gauranteed,,,my 1.9 tdi mileage in long root around 22-28 km/ ltr,,,n that's real
@@surendrabullets483 hogwash. Tried and true procedure. Just cuz you "THINK" it aint good doesn't mean it aint good.
That's what you call a mechanic,not just a parts changer; i've been like that too,all my life; thanks for taking the time...
awe, shucks!
i like how you have time to show the viewer how to save the picture to the computer ,,and very easy to understand your explanation ,,,,hope to see more of your uploads
got 180 videos. Thanks for watching. New content upcoming. Takes time to film & edit.
Now this is what you call a mechanic ! not just replacing parts, well done thanks for sharing.
yes, dealership would recommend a new turbo.
You can even explain the computer stuff procedures very well. You are a natural teacher, congratulations!
Awe shucks! Thanks so much.
@@CoolAirVw Are you available to give me some help with my golf mk4 1.9 tdi 110hp that is having boost problems?
@@GamerLightMan do the checks in this video
@@CoolAirVw I dont have any codes :/ With the engine cold, i have very low pressure untill 2k rpms. When the engine is worm, the problem goes away almost immediately.. I didn't do the checks you did because I don't have any type of gauge to measure pressure.
You are a turbo hero for me! Thanks for sharing this quality content!
awe, shucks! Thanks for watching.
instaBlaster...
@@fabiandexter8550 remember the old kiss song? ua-cam.com/video/9u97Cug4_tw/v-deo.html
Still know the words to it!
Excellent! Thank you for taking the time to make such a clear and detailed video on this procedure! My TDI has a notchy turbo actuator lever, the vanes aren't completely stuck but definitely gummed up. I have done the oven cleaner treatment a couple times and it works well for a short while and then becomes gummed-up again. I need to pull it and do a proper disassembly and cleaning and your video has really helps me prepare for that. Thumbs-up and subscribed.
Thanks.
Just one tip do not use wire brush on the vanes better to let them soak in brake cleaner or other carbon cleaning substance and use a hard tooth brush, also the best tip of the hole video SAND THE EDGES OF THE VANES AND THE SURFACE THEY RIDE AGAINST IF THEY ARE STILL NOT MOVING FREELY, remember this assembly needs verry little force to move if it needs any at all
I totally agree with you! Instructive!
After i wached your video i took my turbo out of my car and i cleaned it .My car was overboosting like the one on your video.Now the car is runs perfectly.Thx for the info.
glad my video helped.
Big thanx from romania your video helpd me alot and i manage to fix my turo on audi A4 from 2003 by myself ath home love your videi thanx again and god job very helpful your video , your helpt me to save alot of mony
Your welcome. Thanks for watching.
I've got one of these turbos which stopped boosting altogether. Had been meaning to take it apart and this has really helped set me up for whats needed. Cheers!
Look for boost leaks and make sure vacuum system is working. Pull off intake tube and inspect for damage.
@@CoolAirVw oh it's too late for that, but thanks for the advice. That car is long gone, but I kept the unit as it was a hybrid turbo. The actuator won't move at all, not an inch. So I kept it as I wanted to pull it apart, but never got around to it
I'm not going to attempt this myself as I possess none of the skills required to adequately complete the job. I'm just happy to see it explained.
thanks for watching.
Great video. Holding down the alt key while pressing the printscreen key will just copy the active window to the clipboard so that when you paste it into paint (or whatever) only the graph will be there so you won't have to crop the screen pic.
I'll try that
ill remember this to look a whole lot slicker next time.. cheers dude
@@gibbogarage3481 Thanks for watching
Excellent video , most informative one I’ve come across yet , I’m about to replace the whole cartridge on a turbo and I’m going to give your splitting technique a go ... thank you for sharing this!!
Thanks
Brilliant and informative video :-) Thank you for taking the time to show us this :-)
thanks for watching.
Very good video.
The problem is often to R&R the damm turbo,the repair is easy by comparison;
And here is lesson learned when you have a variable geometry turbo (means with those "11" moving small wings/vanes):
Do a varied driving--- if you do city slow driving, find a stretch to floor it ,every hour or so; if high speed driving or towing,let off the gas often,to get those vanes moving;
The first case tends to avoid the vanes getting stuck closed,no boost;
The 2nd case,them getting stuck all open ,causing what we saw here,overboost;
The worst invention ever for diesels,the EGR valve is mainly to blame for that problem,it makes the engine constantly re-ingest its own vomit,its own smoke over and over;
If you only saw what the EGR can do on older cars,to clog up intake manifolds, throttle valves,cyl.head intake tract,valves, rings,etc to the point that the engine is choking and barely runs; it then pollutes *A LOT MORE* then if there was no EGR in the 1st place; this mainly due to the rings getting stuck with all that muck,and the cat.having seen better days; it's a tough decision bet. breaking the --LAW-- and eliminating --EGR-- (not easy on some cars,it turns the CEL on) or keeping it and facing those consequences...
You got that right! Thanks for watching and commenting.
Great video. Did this, gained skills and fixed my sticky vanes. Golf mk5 160k miles. Replacing turbo costs more than car is worth.
thanks.
Damn !! Love these videos, pure mechanics clearly described and executed !
Watch some of my latest ones! Oh so good!
Great video, actual diagnosis with examples of it rather than just changing and saying what the problem was
Thanks for watching
Hello from Morocco...retired and starting a VW pre owned business in Fez. I have a 05 Toureg... And rebuild/clean turbo vid rocks...thanks LW
thanks
Best detailed video on UA-cam, thank you for sharing..👍😁
Thanks.
Excellent video, answered all my questions. I had a waste gate stuck open. Thanks
excellent! Glad it helped.
Great video. Thank you. Trying to build up the courage to do mine. Just scared of stripping the manifold to cylinder head bolts..
Have watched pretty much all of the vids on how to do this but yours is the most informative and realistic...Thank you
thanks so much!
Soak em for a week or so with kroiloil.
Excellent explanation of what is the issue here and how to sort it out, I will definitely now be able to sort the problems with my car, many thanks 👍
Thanks!
Seni defalarca kez tebrik ediyorum. Çok iyi , çok faydalı bir içerik . Teşekkürler.
youtube kanalımı izlediğiniz ve yorum yaptığınız için teşekkür ederim.
Just came across this video, really well done, excellent explanation. I think my Mk5 2.0 TDI Golf has this problem, it's done a lot of km's and the last 18 months has been very short stop start distances with the engine hardly warming up. Engine light came on this morning with an "Emissions - Garage" warning. I hooked up my diagnostic scanner and got a DTC P0234, which is turbo overboost. So this video has been a great help, thanks for putting it up.
Your welcome.
U helped me again ur video are 3 years at fuis point but I am benefiting after these years sir i have been looking for this this on Internet but didn't get until now
I'm glad it helped.
Our 2014 Crafter (120kw) has a similar intermittent overboost problem (code 023400). Thank you so much for pinpointing the proper diagnostics - we should be able to figure this one out now.
Does the crafter have VW engine? I thought it might be a "sprinter"??
@@CoolAirVw The Crafter 2E series shares it's platform with the W906 Sprinter. The driveline (engine, transmission, differential, steering, etc.) is Volkswagen specific.
@@gonefilming2020 Oh, cool.
thank you so much for showing us how to diagnose the N75 and VGT actuator.. I'm working on a P0299 right now for my 05 Passat TDi BHW, and I'm at my wit's end.
Keep up the good work. All those tips even the smallest one matters!!! during our own DIY attempts!! I Thank You with my subscribtion and God bless.
Your comment means a lot to me. God bless you too.
When using the wire brush on the ring, it's a good idea to use it on the outside edge of the ring too. There are three (I think) raised portions that hold it in place and they are common places for carbon build up to cause sticking. Once reassembled the whole vnt mechanism should move with a VERY light touch, even gravity should be able to move it.
Excellent advice
Excellent video! Very informative, and in depth. I'll be troubleshooting the overboost problem on my 03 pretty soon, but I'm sure it's going to be the same as the customers car in the vid just based on the high mileage. This vid has helped tons. Thank you
thanks for watching
Brilliant!! So good to see a professional at work with good tips in real conditions, rather than some dumb kid fumbling around with zero technical knowledge. Most excellent production.
Thanks!
Watch my short shifter video and you'll see me fumbling around like a dumb kid. The comments say as much also!
Thorough and clear explanation in overall good video. Thanks
thank you.
Thank you so much for the insight into this type of turbo. I think this is what's wrong with my 320d unit. Rattling too, so it leads me to believe the actuator arm is loose in the ring also. I'll be attacking this job shortly!!
Is your 320d a variable geometry turbo or does it have a wastegate? Some Vw's have a wastegate and when it wears it rattles. See the following video. ua-cam.com/video/kRHmjAD3JHc/v-deo.html
@@CoolAirVw It has an electronic actuator with the lever to rear of the exhaust housing. It howls & rattles on deceleration. Also when static & revving then letting the throttle off! Edit: Just checked & the lever is moving manually.
Great information.
One faster way to save the graph image is using the Windows Snipping Tool for computers not using windows 10 (Start>All Programs>Accessories>Snipping Tool), in windows 10, use Snip and Sketch (Windows Menu> Type Snip and select the Snip and Sketch App).
cool!
I'm glad I watched right to the end before I made a comment about not checking out the turbo while you had it out!! Great video.
Brilliant video. Liked! I tried the Mr Muscle oven cleaner trick a few days ago, so I'm hoping that may help. It certainly did free up the actuator a lot.
let us know how it turns out.
A Great video showing exactly how the variable vain turbo functions or in this case did not function... excellent thank you enjoyed it tremendously, wish you were my mechanic.
Thanks for the compliment.
Oven cleaner method saves alot of time and work.
Sure if your doing it yourself. Maybe oven cleaner will fix it if yours is "just barely" stuck. maybe if your doing it yourself and don't have to GUARANTEE to a customer that it will be FIXED. Maybe if your reputation doesn't rely on fixing it right the first time.
Wow 😮 good video I have boost problem on my Audi and tnx to you now I know what to do
Thanks!
you really explained everything in detail..thanks bro! fr PH here
your welcome. Thanks for the complement. I really appreciate it.
I don’t have a problem with the turbo but I was looking at timing and this video came up so I watched it and yes thank you a lot of good information always wondered how those veins work. Thanks again
thanks!
CoolAirVw Rm Can you tell me why does a VW 1.9 TDI starts hard and when it is running it smokes white light crazy? I am wondering if one injector is not working right that makes all that smoke? Because we just did the timing and it is all correct. But number three cylinder has about 100 psi less compression as the others
@@johnbeechy2913 white smoke can be oil burning either from engine or from turbo. Sometimes a fuel restriction can make smoke also.
CoolAirVw Rm Number three cylinder has 325 psi compression and the others have 425 So I thought maybe that low compression is making the smoke but it and it smokes all the way through the exhaust because of that one maybe not firing right. And I have to use starting fluid to get it started for it also has no throttle response. So thanks for that information but I’m probably going to take the injectors out and have them tested because they might be malfunction as well.
@@johnbeechy2913 that aint good.
Very interesting video.. my turbo wasn't working and the mity-vac on the actuator wouldn't even hold vacuum. removed it and replaced with a new one. My vanes were notchy but I think it's because they haven't been going to the limits for a while so I'll try the Italian tune-up on it. I'm getting 15-16 inches of boost and the car feels like it did back in the day. I dissected the actuator and it was all rusted to the point where the diaphragm had a hole in it. Not sure how these things fill with water but that's their achilles heel. Thanks for posting!
Yeah, if they have vacuum problem and dont move for awhile they get sticky. I hope yours frees up.
@@CoolAirVw Thanks, I'm sure it will, I've been flooring it every chance I get and will take it on the highway for a good blowout on Wednesday. At least I know how to clean it thanks to the video. What anti seize paste do you use on the bolts that hold the turbo cartridge into the cast iron part?
@@RobertMChambers Thie ol' Italian Tune up.
A bit over my head and beyond my skill-set, but a great educational video. Thanks.
I'm glad you learned something.
I ran into what may not be common problem.
I found the plate in the exhaust housing below the vane plate had rust developing under it. This was raising the plate just a few thousandths of an inch. So when I tightened the vane plate it would cause the vanes to stick. I found the sticking was gone when I loosened the screws holding the assembly together.
So I removed the plate, cleaned the rust off and it works perfect now.
seen that before. unfortunatly sometimes when you pull the screws out of that plate the bolts break. At that point it might become a replacement turbo. We try not to pull those bolts if we dont have to.
Brilliant video. Thank you for taking the time to make and share it. Helped me out alot.
I'm glad it helped. Thanks!
Brilliantly explained,thank you for this info.
appreciate the positive comment
Thank you so much for sharing your knowledge. I just serviced my Garret GT2052V from my Nissan Patrol ZD30DI.
cheers from. Colombia south America.
Hello Columbia.
Perfect, I was looking for video like this, great job and description! Tomorrow my turn :D Thanks!
thanks for watching.
A tip to save parts of screen quicker, use snipping tools, they are already installed in all windows starting from windows vista all the way to windows 10, it allows you to capture the specific screen area that you want without needing to use paint.
Excellent info. Thanks for sharing.
Brilliant video which explains in good detail.
Thanks! Soon I'll be posting what I consider my best diagnosis video. Stay tuned.
@@CoolAirVw I look forward to it.
Great video. best on here with this type of turbo. thanks for sharing
Thanks for watching
Good video. Looks like a Garrett GT VNT. Seen a few of these sticking or seized vanes on Ford Galaxy/VW Sharan TDi mpv in the UK. This issue can throw up an air mass sensor fault even though nothing actually wrong with the air mass sensor - it's just sticking vanes affecting air flow (and boost).
good to know. thanks
Hero for me too
Thanks for all the information
Your welcome!
On windows you can also use the snip it tool, this allows just to copy the part of the screen you want. Good video. You can also cut down on that screen flicker by playing the refresh rates on the computer and camera.
I tried changing screen settings. NO help. Once I changed camera settings and lost two videos! Maybe I'm technology challenged. My old laptop didn't make flicker.
Very informative and well made video, thanks!
thanks for watching.
A+ tech what a G cant wait to get that code.
Thanks.
Just the BEST. Brilliantly explained. Thank you so very much. 👏👏👏👏👍👍👍👍🙏❤
Thanks.
brill video. i now know my turbo is not the issue. keep up the great videos
Excellent video mate, got the same problem with my Vw B6 Passat, Will be cleaning my turbo very soon
Good info here!
Brilliant video. Most mechanics would have just replaced the turbo a proper mechanic repair’s.
Just ignore any criticism.
thanks
Woah, you guys know your shizzle. Nice video.
ah, shucks! Thanx!
A must video for everyone who has a tdi
Excellent video
thanks you.
loved the video man, you go into the perfect amount of detail, i really enjoyed watching you take the vnt mechanism apart... will be trying it on my channel sometime soon with my tdi audi.
Thanks for watching. I'll take a look at your channell.
Bonjour, très bonne vidéo, très bien faites et expliquée !!
Hello, really good vidéo, really good réalisation, good explication.
Thanks for that !!
Merci et merci d'avoir regardé ma chaîne. D'où êtes-vous?
@@CoolAirVw en France, à Toulouse 😉
excellent video!!! Thank you so much for the how to!
thanks for watching
Great video, i learned a lot. Thank you very much :)
Thank you for watching
Entire reason I run water methanol injection. 32cc nozzle ( smallest available) Keeps everything clean and healthy
cool.
Very helpful... thanks
your welcome
Thanks very much for the video. Very helpful.
Thank you!
Thanks for the mint video.. this definitely helped a lot of people
thanks for wathcing.
The turbo is cleaner than your work bench!!
Yeah, I cleaned my workbench once.
Have u ever had to replace a turbo that's failed ..like filled the intercooler with engine oil also the exhaust system...watt direction of repair would u recommend thks ..awesome video nice to see a mechanic at work
Yes I have. used or new turbo, or upgrade to larger turbo. Flush out intercooler and tubing. beware that if it pushed large quantities of oil out then it could have damaged the engine, either by low oil, or bending a rod or runaway.
thank you for a very informative video.
This seems to be a popular video!
thanks for your information and efforts
thanks!
Cool vid. Instead of using Print Screen and editing the pic, you can use the Snip tool and capture only what you want and save it directly to a file.
Ok, I'll try that.
Mr Proper cleaning perfect 😂😂
Awe shucks!
When the turbo failed engine did not run away it just filled the car with oil smoke then I switched it off..had car towed home ..on further investigation found the engine to be hydra locked I removed the glow plugs turned engine over got oil out of the plug holes ...put glow plugs back in top up motor oil started car it ran good only for a couple of mins just to check it was still good ...motor only done 120000klm so hardly run in lol .
Hydro-lock can bend rods. Hopefully not.
Many thanks. This video helps me.
Your welcome. Thanks for watching and the kind comment.
excellent result DOGZ BOLLOCKZ
thanks
Nice video! very detailed! thanks
thanks for watching
Thank YOU. Good video and information !
thank you.
thank you for great detail video
Your welcome! Thanks for watching.
nice video !big thumb for job!
Thanks for watching.
Windows Key+ Shift + S
This is alot easier, you can dodge Windows paint Application and crop anything on your screen that way, then the cropped image is copied to clipboard
what do you do with it after that? Paste it into Windows paint?
oven cleaner then leave it on a while it melts carbon off , hit with an old tooth brush and leave it again it will be like new and rinse off with ega cleaner
Please post your video.
@@CoolAirVw didn't record it lol, dead easy though using that stuff, try it on something with heavy carbon on it, it just melts it off works very well even better than egr cleaner, some common sense needs tobe used though as you don't want it hitting rubber parts for too long if it does heavy rinse it, you wont need to wire brush again that's for sure
Sticking every now and then is what mine is doing. I replaced the actuator that was rusted up, checked the vac on the new one (20” vac to the stop starting moving at 3” vac etc) so I know that’s right, but still getting a very occasional overboost limp mode after planting my right foot to high revs. Strange thing is the mechanism is free as a bird without the actuator attached, so I can only assume the tolerances close up when it gets hot?
Is the hole on the actuator binding on the lever?
Learnt a lot
Cool! I'm glad! Thanks for watching.
Excellent.
Thank you!
This is interesting because it is the first time I have seen this kind of complicated "wastegate" mechanism. My queation is how is it lubricated to prevent it from siezing or carboning up again as it is in the hot section? Surely a traditional valve type wastegate is more reliable.
Best method for keeping it clean is the italian tune up. Drive it hard at least once per drive. Exercise the mechanism from full boost position to low boost position frequently to keep it moving. Heavy throttle useage "burns out" the carbon. Light throttle driving or "lugging" the engine tends to make carbon build up and mechanism to stick. Wastegate mechanism on 2.0 TSI/FSI is problematic more so than these.
As the fix was to remove the carbon build up to free up the vein guides.Could you not leave the turbo on the car,remove the exhaust down pipe from the turbo, fill it with a caustic soda foam (oven cleaner), leave it to break down the carbon, flush it out with water,repeat then run the engine at idle to remove any water/caustic soda?
No but you can.
The display flickers bc it has lower refresh rate than the camera settings are set.
Just adjust the settings for refresh or some comps call it hrz
I've tried with that laptop. No settings change the flicker. But I've got a new laptop that doesn't do that, plus I use a screen recorder usually for screen shots
@@CoolAirVw I see ... Well idk any other way except if the screen of the laptop is 60 hrz then shoot in 60 or more fps or hrz.
It is the same fps hrz and refresh rate 😂 😂 it is stupid but it is like that
Match the hrz refresh rates or fps on the phone. And for screen recordings that doesn't matter. It happens only when you look in display through camera
I know that I am boring and I am sorry !!!
@@ChudGippity No! I appreciate the help and it should have fixed it when someone told me that years ago, but unfortunately I believe the graphics card isn't capable. But screen recording doesn't' use camera so no flicker there.
@@CoolAirVw Yes!
Love your vids
@@ChudGippity thanks
Ultra Sonic cleaner to free up and clean ring, vanes, and roller spacers
excellent idea.
Hi can you recommend one specifically for car components?
I’m learning, excellent video
Thank you sir.
Your welcome!
Your welcome.
I have a 2002 golf tdi which every so often has over boost.. so I will be cleaning the turbo and seeing if this fixes the problem
Let me know how it goes! Might do the same
throw it in bin
Did you clean it yet. I have the same car and issue
well done from zimbabwe
Awesome video.
Thanks for watching.