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I think the worst thing that could happen is your battery die

Terrydtdi brought my diesel back to life with this. Thanks guys!

I very surprised to find that my no start condition was due to a faulty MAP sensor.

I had this same issue and what it ended up being was the vnt actuator was out of adjustment. Had to dial it back in and lock it down. Used a mity vac to diagnose and calibrate.

I left my egr unhooked when I had this same problem. My valve is sticking but yours could be your n18 or valve sticking. Another problem I had was my MAF was bad. Egr flow is calculated off a deviation in the MAF reading spa bad MAF can give p0402.

Actually. Probably a MAF since egr flow is calculated off MAF readings.

I'm having this exact same issue. If I disconnect the vacuum line, should exhaust pressures ever get high enough to open the egr. I am wondering if a clogged exhaust could be my culprit. It makes sense to me that if I disconnect the vacuum line to the egr valve and the egr valve is stuck shut, I...

Anyone?

Anyone had any success?

I have this same issue and can't seem to figure out what causes it to go in an out. Very annoying though any advice is appreciated.

This is not a limp mode problem. I had an issue with my car not making any boost pressure that was related to my vnt linkage. I adjusted it and a few weeks later I have a serious loss of power. My boost pressure reaches normal levels in all gears so I don't think it's air related. In first gear...

http://forums.tdiclub.com/showthread.php?t=179589

http://forums.tdiclub.com/showthread.php?t=199398

Uzi, this was my problem. I calibrated it as best a could with it starting to move around 2" and bottoms out around 17-18". I am so thankful for this thread. If you are doing this job go ahead and remove the hard pipe going into the turbo, the 90 degree hose off the egr and the heat shield for...

Uzi, this was my problem. I calibrated it as best a could with it starting to move around 2" and bottoms out around 17-18". I am so thankful for this thread. If you are doing this job go ahead and remove the hard pipe going into the turbo, the 90 degree hose off the egr and the heat shield for...

Pressure does not mean you have flow and I would be willing to bet you have a clogged intake manifold.

I have heard that potential issues could arise from 17/22 due to shaft imbalances. Basically that they are 2 turbos pieced together as opposed to one being built around a single set of tolerances. Also, the test bench of the company that makes the 17/22 cannot test it at the operating speed...

Would cooler weather not make your engine more efficient? Winter fuel should not be available yet either I wouldn't think.

Dan, my name is Moultrie Ball and I was wondering if you had a vag tool to help me set up my vnt actuator.

FYI, if anyone wants to understand WHY and how the system operates check out this page. http://uk-mkivs.net/forums/t/353504.aspx