Passat 1.9 TDI AFN Power Loss

Hello, I tell you:

Some time ago that my passat (1.9 TDI 110CV with 305000km) has no power, it does not reach 140 km/h or pushing it costs low, today I have been able to make a log and this graph has come out.
If you can make me a hos cable, I would appreciate it a Monton.



I also put some catches of the vagcom.






By the way the N75 is new

New empty tubes, until the one in the ECU.

Cleaned turbo geometry.

The statement of the status of the pressure tubes with the help of an invention that found Moncho.

-Two fontaneria tubes of 1 1/2 ".
-A wheel valve.

I put some photos, since it is worth an image than a thousand words.









Now to better see leaks, 2 pressure bar is introduced and we introduce it into the water.





After checking all the tubes and seeing that they only escaped a little from 1.5 bar for the elastic hoops touches the interculler.



High escape surprise in the.



After a reappriete, solved escape.

Now I only have to replace the elastic rings with 40-60 clamps.



After all this is almost the same.

All the best

Hello, I've been looking at the graphics that you have glued in the post for a while, and what I see is that a slowdown (the last three lines of the right 903 rpm) enters a lot of air in the collector (more than the account) and there is some more turbo pressure of the normal.

Between 903 rpm and 1617 rpm you have no data, from 1617 to 2289 rpm you have less air than you should have (low MAP and MAF).

From 2289 to 2814 you have too much air (excessive air pressure and flow) until 2961 rpm are corrected abruptly.

Have you looked if the EGR is fine? Because from what is shown, it seems that it is seized open more than the account (when this happens, the pressure of the exhaust gases is lost towards the admission, the turbo blows little, the engine pulls black smoke ...)

also looks at the pulmon of the turbo and that the solecves of both EGR and the turbo work well. Check the emptiness produced by the Servo vacuum pump since if it is very worn, it will not be able to move the actuators or lungs of the turbo and the EGR.

If you had a bad intercooler tube or the cracked or loose admission collector, a whistle of air that is "jet" would be heard, the symptoms would be similar (lack of strength, black smoke ...) but the values ​​of the vag com would be different, MAF above normal and MAP too low), since the air that comes out has measured the flowmeter but there is no pressure. broken.

MAF = Mainfold Air Flow (Flowmeter)
Map = Mainfold Absolute Pressure (Turbo pressure sensor).

I hope it helps you.

Hi Megabeat_1, above thanks for your comments.

Tell you that the lack of power was one day to another.
The vacuum pump gives me 0.8, but at the exit of each solenoid valve it is reduced to 0.6, I don't know if this is normal.

The Turbo lung is fine, without leaks.N75 and new depression tubes.

The EGR was cleaned with the turbo, it was checked by giving it depression and releasing it suddenly and it seemed that it closed well, also tell you that the turbo has some slack, but that I do not think it influences too much no ??.

With regard to what you tell me "I have been looking at the graphics that you have stuck in the post for a while, and what I see is that a idle (the last three lines of the right 903 rpm) enters a lot of air in the collector (more than the account) and there is some more turbocharged pressure of the normal.", What can it be due?

What do you think of the state of the flow? I am about to buy one for Ebay, because in other forums they tell me that it can be somewhat touched.
The problem of staying longer time can EGR be due to the N18 that is in poor condition?
When the car is a few minutes to reling the N18 cuts well and does not give way.

Thanks again and forgive for the billet.

Have you tried to put empty to the turbo lung and to release it suddenly?

Another check is to put an T on the vacuum tube that comes out of the N75 to the turbo lung. A vacuometer is then placed so that we can read it and go to a stretch of road where we can maintain a stable speed. Going to 100, if you touch the pedal to climb to 110, the pressure gauge should be maintained and even increase. (more emptiness = turbo palettes in load position)

If the vacuometer is unstable driving at sustained speed or by accelerating the vacuum falls below -0.5 ... you have an air intake or a vacuum tube poorly connected when disassembling and mounting the N 75 and the N 18.

I have been looking at forums such as Areavag, Vagclub and more or less is what I have made clear.

All the best.