This is my first post to this forum. I have been quite active on tdiclub.com and vwvortex(to a lesser extent),
Long story short... I have been trying to diagnose a scraping/metallic exhaust sounding noise for over 3 months on my car.
The noise starts just as boost is kicking in and lasts until about 2600 rpm. My engine also feels like it's surging or being overpowered.
There are no boost leaks, vaccuum leaks at all.
My car has been looked at by myself, a private mechanic and now by the dealership.
Car specs:
- 06 Jetta TDI 5MT
- GIAC Tune/Chip
- No other engine mods
I have done a plethora of boost tests, vacuum tests, etc... Today, I got a diagnosis back from VW stating that I was overboosting. They suggested I have my chip removed and bring it back in.
Can someone look over this work order... it seems like they are saying that the measuring block is reporting a charge pressure of 2575 mbar. That is over 37 PSI!!! Is this the actual boost pressure?
What could be causing this huge boost spike?
Here is a pic of the work order and a link to one of my many threads on TDIclub.com:
Since you replaced the egr it's not that. Are you sure it's not something in the drivetrain? Have you checked the camshaft?
That sounds high if it's the actual boost pressure. Possible causes: boost sensor, n75 solenoid, ecu programming.
Is it possible that the exhaust is vibrating? Read your other thread, I don't think this crack in the exhaust is a problem and it shouldn't affect turbo boost at all.
Just skimming your other stuff, it's possible that there's a leak somewhere between the intake and turbo associated with the EGR system. This may not be detected by a boost leak test and it would definitely cause a weird sound and loss of power. I can understand how frustrating this is but that's all I got. Any more clues, feel free to post a follow up.
Hi guys,
I have a Polo 1.9 TDI Sportline(96kw) and I recently did the engine on it. Since then , the car has a starting problem.
When I try to start the car, the engine just swings and sometimes it will start the car but most of the time, I spray a little quick start in the throttle to get...
hi, the scanner readout suggests "boost pressure fault". no lights on dash.
so far the garage has
1. cleaned the turbo
2.new MAF
3.checked high pressure/vacuum pipes
4. changed N75
5. cleaned EGR valve
i am at a loss now, has anybody got any suggestions what to do next ?
if i stay under 60mph...
Hi Guys.
Now I've had this info for a long time I've just seen it again so it may as well go in here.
Let me start from the beginning. Every VAG vehicle made has an Options sticker. One half of this sticker is on the first page of the service schedule the other half will be stuck on the boot...
Hi guys.
Now I've been curious for a while as to which is the most popular model users have on here. In a poll you can only have 10 options so I've added the popular models talked about on here, sorry if I missed your model but you can add a comment saying which model it is. If you have more...
I, like many other users on here, have been extremely frustrated with the missing content. I have tried my best over the past few months to get any contact from VerticalScope directly (parent company of My Turbo Diesel, which they bought out a year or so ago). Instead, their support company...
VW TDI forum, Audi, Porsche, and Chevy Cruze Diesel forum
A forum community dedicated to Audi, Volkswagen, Porsche, and all turbo diesel owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, TDI, maintenance, and more!
