Vw Tdi Timing code P1248 Part 2
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- Опубліковано 10 вер 2024
- Fixing P1248 Start of injection timing regulation control deviation intermittent on a 98 Golf Tdi with ALH engine. Diagnosis info in this video. Diagnosis of this problem was in part 1 • Vw Tdi Timing code P12...
www.kansascitytdi.com
Excellent troubleshooting and diagnosis.
I hope that customer appreciates having you as his mechanic. Knowledge and skill are becoming rare in the automotive world.
Your videos are very helpful and informative.
Thanks for the upload!
Keep the TDI content coming! I appreciate all of your effort making and editing these videos.
If you have any MK3 TDI cars in the shop, I will watch whatever you make from it.
I have a couple mk3 tdi videos but its pretty rare for a mk3 to come through the shop.
we've used richard/cool auto for years on our TDi - wouldn't take my TDi anywhere else - thanks for taking the time to post the videos!
Thanks so much.
Yes you are correctly it should have O ring...somebody was not thinking...and somebody else pays the price...
Good video 👍👍👍
Exactly!!
Thanks so much for taking the time and posting this. I have 524TD IDI with Bosch VE (normally it's mechanically advanced, like on cummins etc, but this one is solenoid metered). My current one is fried but got a used replacement from a VP30. I seriously think they just throw on different part numbers on the exact same part because your solenoid looked exactly the same down to the color of that little screen filter.
thanks for watching.
Thanks brother u helped me alot because here no one knows the pump here in Saudia Arabia
thanks for watching in Saudi Arabia.
Really appreciated ur works came in handy at right time
That’s a great find and fix,
thanks.
Thank you for sharing this!!!!
Your welcome! There's 200 more videos... feel free to binge watch!
Nice fix sucks that the other garage missed a simple O ring but that’s where school of hard knocks comes in I myself would of missed the O ring as I don’t open up pumps often anyhow good vid 👍👍
The other mechanic replaced the solenoid so I actually think they might have been right in their diagnosis. Or maybe the o-ring was missing on the 1st solenoid as well.
I was willing to go deeper into the injection pump to find the problem, but luckily I found the o-ring. I'm willing to do some repairs inside there but I certainly cannot claim to be an expert injection pump rebuilder.
Man I wish you could have a look at my jetta. No one even close to me that knows diesels
Try the trusted mechanics list on tdiclub.com
Nice find... TDI Meister!
2:05 the moment that the black shim inside cap was fall away but did not know yet about it
i would like to say thanks , all but all the web say '' neeed to remove pump from timing to do a n108fix'' ,
with the help of your video ive suceffuly removed this cap at 2:00 without removing pump from there
ive taked a T30 small bit , with an 1/4 key the cylinder was stuck giving me 255 in block 2 my n108 was 15.5ohms and have 12V when car was on , the car feeled like a john deere with loose conrods ,, and have absolutly no acceptable throttle response untill 2000rpm
after removed this cap ,ive loosed the 3 ip bolts to adjust timing and wiggeling the center shaft back and foward ive succeffuly unstuck the cylinder that would goes out each time you wigle back then fourth , when i have put back the cap spring and shim and applied a litle force on it , the cylinder have made a major course ( more than it was when i removed this cap , i heard it go at it full travel , now the car look fixed for that , im not totally sure , need to check in vag com if im still at 255 in block 2 will update this comment because its a major headashe to study about this issue ,, ( here , motor was out of a car since 1 year
thankl a lot you shared a lot of usefull information by doing this , keep your good work Grats from quebec Lac ST-JEan
I learned a lot from y,our video. I have a 1.9 trillion and its having starting issues. If I goose the pedal then it will start. Is there a fuel pump in the tank? If so how do I test that it's working?
On ALH cars like the one in this video there is no pump in the tank. On BEW, BHW and BRM cars (04 - 06) there is a fuel pump in the tank.
Hey man, great job, and thanks for showing us this. I really appreciate the videos you have shared. Are you still repairing mk4 valve bodies, the one you did for me is doing great. You do good work. Hope I don't jinxs myself . lol
Yes I am. Thanks for the compliment.
Dealing with the same code for months. I've checked the timing and I injection quantity both look fine. I removed fuse 34 and the engine sound changed. I'm thinking of trying a diesel purge cycle straight to the pump. Any ideas?
worst case scenario you have to change the pump.
@@CoolAirVw just to clarify are you telling me I have to change it or just letting me know what the worst case is? Thanks for the tips and videos
@@CoolAirVw just following up thanks
I say, "worst case scenario you have to change the pump.:.. your next question, " do I have to change the pump or are you telling me worst case?"
Would you recommend a cam and lifter kit from a supplier for 02 alh tdi,
Email me.
Hello Richard,very informative vids,thank you! Can you rebuild an om1 transmission?
Yes I can. But I only do it for local customers.
Even if I send the tranny to you?
@@herbscheit2061 No. Local customers only.
Hi, great video. I have the same code, removed the pump, and opened the bottom side covers to expose the start of injection piston as seen around 5:30 in the video. I found a little chip of metal off the end of the piston has broken off and there was a tiny bit of metal shavings both on the end of the solenoid and where the piston was chipped. The piston bore seems very lightly scored so I can push it back and forth and it does affect timing but I have to push considerably harder than you push in the video. It seems to me the hydraulic pressure is not overcoming the friction and that is causing the start of timing deviation. How would you recommend I proceed? Is there a way to remove that timing piston to lightly sand (like 800+ grit) the surfaces to face them so the piston can travel smoothly?
ha! I think I just replied to a facebook post of yours. Buy a core pump and transfer the components. Or just buy a used pump.
@@CoolAirVw Yeah that was me. Thanks for your help!
Good job. I replaced my timing belt and my start of injection is at 255. How do I get it to 65 (spec). Moving it within the oval holes of the IP pulley does not move the timing at all. 255 no matter where it’s at via IP pulley.
you probably have it so far out of time that its simply showing you a default value. You'll need to disconnect the belt and retime it to get it close enough to show you a real value.
How exactly did that o-ring affect the function of the solenoid? Not sure you explained it. Thank you for educating us on our ALH TDIs!
since the PWM (pulse wave modulation controlled) solenoid acts like a faucet, it moves to adjust the fuel pressure on the timing advance mechanism depending on the amount of advance from the computer fuel management system... if the o-ring is not there, the fuel pressure leaks right past it and can't control it... So, that's as complicated as I can make it (sorry, it seemed way more simple in my head). I just replaced my N108... and of course, it had to happen right AFTER I did the timing belt service. I used an ohm meter to check the old one, it showed OPEN (the new one was maybe 12 ohm, if I remember correctly) Now, I'm getting P1248 code. @CoolAirVm Rm GREAT video, thanks !!!
what he said! I couldn't have said it better!
@@CoolAirVw but the bad news, the part number was slightly different... and the 'easy pin' removal and connector splice didn't go so good... now getting "intermitent" code again, but no drivability issues... Need to investigate more soon.
@@ManVsOven what is p1248? (sorry cant spend the time to look it up and I dont know the year)
@@CoolAirVw The same p1248 in your title of this video.. ALH engine, same as your video.
No me dejó traducirlo ya que tengo la misma falla en un Bora tdi
nice work sir i have one problem octavia 2004 tdi 1.9 p1247 needle lift sensor if change sensor same problem how to fix
👍👏
Thanks for the thumbs up!
There was CEL on my Skoda ALH 1.9 TDI 2005. The error code was P1248. You had advised to set the timing correctly. I have set the timing with the help of VCDS and the error is gone. The car is nice and smooth without any vibration and knocking. Thanks a lot for your valuable advice. Please keep posting such wonderful content which helps us to a great extent.
drive.google.com/file/d/13xw4fvh7HIu3lSvaUsupQstolv3sZf2K/view?usp=drivesdk
drive.google.com/file/d/13yyexs5KoeevhKBQ1XpnnejznG1Bjv03/view?usp=drivesdk
Your welcome. Thanks so much for the positive feedback.
some mechanics cause problems you fix them .
Ah, shucks! Thank you.
Impact on tight screws/bolts? Not a fan
In depth explanation of how timing is done on this injection pump, diagnosis and fix without replacing injection pump, yet your concerned with what? I believe there is a internet slang term for that.
@@CoolAirVw ya . A cheesy mechanic. Pretty sure after watching both videos you did replace the pump. Least I'm not stripping bolts
@@jameswiebe9221 It aint easy being cheesy! Thanks for watching and commenting.
Sorry 1.9 tdi not trillion. I hate spell check!
Ok????
found your other comment on the other video so now I understand. You have no fuel pump in the tank.
@@CoolAirVw Thanks very much for that information.
@@scottsherwood8555 thanks for watching and commenting on my video.
this is why you like "old" TDIs, especially VE, BECAUSE YOU CAN FIX IT:
ua-cam.com/video/SqBlqdeP3uE/v-deo.html