A4 B6 2,5 TDI 180 Ps BAU, Leistungsloch unter ca 2800 U/min | Posts 24+

MrMcFly79 wrote:

...was with a tuner who soldered the chip onto a different ECU....

MrMcFly79 wrote:

The first two diagrams show power output, representing a trip along a certain distance and back.

I would be confused because I would be alone. But is it a good idea to try and compensate for potential problems caused by tuning boxes?

If the mechanical, electrical, and pneumatic systems are all functioning correctly, and the logic was sound, then it's possible that the power output corresponds to the normal operating state of the engine...?

MrMcFly79 wrote:

Today, I adjusted the basic settings, and the Vtg (voltage) is increasing normally and quickly. I could also find nothing on the nozzle.

There's nothing to discover about the rubber grommet; it's leaking, and the vacuum is being lost. The cumulative effect of all these losses has led to problems.

Hello guys,


I'm not trying to compensate for the lack of power with the Steinbauer; I just wanted to get a comparison to the standard performance.
How do I remove the ferrule? I don't want to pull too hard on the hoses .

Best regards from Tobi.

The hoses are simply connected from both sides, and the nozzle is then easily inserted into the mold.

I took it apart and examined it, and the nozzle looks fine so far. I'll probably exchange them sometime.

This weekend, I'm going to test drive a different car with a similar engine output (180 horsepower), and maybe it will turn out that I'm simply expecting too much from this particular engine.

Best regards,
Tobi.

You should always do a comparison test, and compared to a 1.9 PD TDI, this one is a slowpoke when it comes to acceleration from a standstill.

Yes, and I previously had a 1.9 ARL engine that was chipped .

Okay, test drive completed. The comparison object is clearly better than mine, and it's not just my imagination.

Could you please take another look at the attached data logs for boost pressure, air mass, and torque to see if those values are really okay?

As far as I can tell, the boost pressure is lagging quite a bit.

Best regards,
Tobi.

Quote:

As far as I can see, the boost pressure is lagging quite a bit

and isn't regulating properly.

It actually looks pretty good.

Best regards, Rainer.

Then I can probably give up searching for vacuum leaks, right?

I once looked at the control unit, and it looks a bit messy inside the casing... especially the design with the hose connections and the cut-off cables, which I find quite adventurous.
The component doesn't look like it has been soldered, does it?

Hey guys,

Sorry to bother you, but I'm really frustrated that the car isn't running properly.

Could it be that something was actually tampered with in the engine control unit (ECU)? Okay, the part number should be correct, the MKB BDH part number is 8E0 907 401 N (I had made a mistake earlier...).
I wonder why a chip has to be desoldered and resoldered during an engine control unit replacement. It should only require training on WFS, right?
Should I just get a different engine control unit (ECU)?

Hello.

Quote:

I wonder why it's necessary to solder a chip when replacing the engine control unit. It should only require training on WFS, right? Should I just get a different ECU?

Depending on the WFS generation, it may be easier to replace the 8-pin EEPROM than to modify the WFS itself.

If you can get a correct (complete VAG part number, including letters, must match) engine control unit with the original data set, preferably without WFS, it might be worth trying.
If it doesn't work out, you can always sell the equipment again.

Best regards, Rainer.

Hey Rainer,

Thank you for the feedback. Without WFS, it will probably be difficult. Is there a possibility of enabling WFS via VCDS, depending on the generation of the vehicle I have?
You can find those control units on eBay for around 40 euros.

What do you think about the variations in fuel injection amounts?

Cylinder 6 Cylinder 4 Cylinder 5 Cylinder 3 Cylinder 1
mg/H mg/H mg/H mg/H mg/H
-1.65 -1.02 -3.22 -2.67 0.16
-1.65 -0.94 -3.29 -2.75 0.08
-1.73 -1.02 -3.29 -2.75 0.16
-1.65 -1.02 -3.29 -2.75 0.08
-1.73 -1.10 -3.29 -2.75 0.08
-1.73 -1.10 -3.37 -2.75 0.08
-1.73 -1.10 -3.37 -2.75 0.08
-1.73 -1.10 -3.37 -2.75 0.08
-1.73 -1.02 -3.37 -2.75 0.08
-1.73 -1.10 -3.37 -2.75 0.16
-1.73 -1.10 -3.37 -2.75 0.08
-1.73 -1.10 -3.37 -2.75 0.08
-1.73 -1.10 -3.37 -2.75 0.16
-1.73 -1.18 -3.45 -2.75 0.08
-1.80 -1.10 -3.37 -2.82 0.08
-1.73 -1.10 -3.45 -2.82 0.08
-1.73 -1.10 -3.37 -2.82 0.16
-1.73 -1.02 -3.37 -2.75 0.16

Broken, faulty motor/ZK (glow plug) or nozzle holder combination, or poorly assembled and leaking.