Performance issues with TDI 96 kw

Hello everyone,

This is my first post and immediately I have a problem with my car, a Seat Ibiza 6L, manufactured in 2002, with 96 kw TDI engine. The odometer shows 18000 km.

Okay, so now to my problem... my car went 220 km/h on the highway last year, according to the speedometer...

today I tried it again (in Austria, you are not allowed to accelerate so much )... disappointing 195 km/h, after staying at that speed for a long time...

what happened? tried again, same result...

So, tonight I decided to try a VAG.COM diagnostic test...

second results here:

ULF Test: 7,7 sec

0-100 km/h: 11,8 sec

3. stage 80-120 km/h: 8,1 sec
4th gear: 80-120 km/h: 9.0 sec
5th gear, 80-120 km/h: 12.4 sec

topspeed: approximately 195 km/h

I also have detailed logs.

among other things: intake air temperature, RPM, boost pressure, intake air volume... (i.e. blocks 7, 10, 11)

from 2nd gear to full throttle

I'm currently in the process of evaluating...

The volume was approximately 900-1000.
Intake air temperature rose to 86.4 degrees
Loading pressure is approximately 2320 mbar.

Do you have an idea? Can anyone help me?

Best regards

Can anyone help me? It seems that the usual approach with LMM doesn't work, as the values are reasonably good.

The intake air temperature was certainly not 86.4 degrees, it was probably more likely the fuel temperature. That would be fine.

If so, then verschandeln the LLK, it must be quite dirty.

vag.com
7-block, 3-wert... that's too high... if I accelerate from the 2nd, the value will be at least at the 4-5... with 86.4...

He is not dirty.

Hm... war das nicht Block 020...? hm... also mein PD_130 erzeugt selbst bei 40°C Außentemperatur etwa 57°C Ansauglufttemperatur. Beim Fahren sinkt sie auf etwa 45°C ab. However, it should fluctuate between 40 and 60°C, with no exceptions.

The diesel engine temperature is always around 70-87°C...

So, entweder Dein Sensor ist defekt, oder Dein Ladegerät macht Probleme. Or, the LLM is completely messed up.

At a flow rate of 1000mg/h, the LMM is perfectly fine!!! How much air should actually go into the small 1.9-inch one? I'd like to take a look at why you have such a high intake air temperature. Because if it really reaches 86 degrees, then he reduces the injection amount so that your exhaust temperature doesn't get too high!

Best regards, Ben

the workshop stated that they had checked all the values and that everything was in order...

so, you can definitely confirm that this value is far outside the norm? I need references from my dealer. Because with this type, everything needs to be confirmed professionally...

btw... if I achieved 7.7 seconds in the ULF test, could I not calculate my performance based on that?

update:

I found it and calculated...

Although I didn't know all the values, I was able to determine a performance loss of a whopping 28 percent and an engine power of 94 hp.

Okay, then take a look at your LLM...

btw: What were the other temperatures, i.e. the fuel and coolant temperatures, during the measurement?

Julian wrote:

btw: What were the other temperatures, i.e. the fuel and coolant temperatures, during the measurement?

Hello

If there are any problems identifying the LL temperature values in the measurement block:
This must be "most directly" dependent on the accelerator pedal (or the boost pressure), with fluctuations of -zig °C.
"However, coolant temperature and diesel temperature should be considered as fixed parameters, at least for the VP TDI."

In the PD, I'm not entirely sure about the diesel temperature (possibly depending on RPM / where is it measured?)

Regarding the PD, I'm not entirely sure about the diesel temperature (possibly dependent on RPM / where is it measured?)

Measured in reverse, directly after the fuel gallery in the head!

Ben1972 wrote:

In the PD, I'm not entirely sure about the diesel temperature (possibly dependent on RPM / where is it measured?) ulf wrote: Is measured in reverse, directly after the fuel gallery in the head!

Hm, then the temperature of the machine (before the diesel cooler?) must certainly be much higher than that of the intake air

However, it is likely that it is also "highly dependent on the last injection timing," since the diesel injection duration = injection duration determines the degree of heating.

The fuel temperature is dependent on many factors (empty tank, load, DRZ), but it is relatively slow to change, so you shouldn't expect jumps of 10K in a short period of time.

The temperatures in MWB Channel 7

Fuel Temp. / Status -Fuel Cooling / Intake Air Temp. / Coolant Temp

here.. the intake air on the diagram = vacuum hose temperature

I drove from the 2nd gear all the way to the 6th gear... always with full throttle and shifting at 4000 RPM. Then I let it cool down a bit and stopped.

http://www.8ung.at/blackmagic/pictures/diagramm2_1.jpg

That's incredibly high!!! With a Radhaus cooler, there's a 20-30K temperature difference between the inside and outside (at full load). But here you're seeing 50!!! Check your intake pipe temperature after 12 hours of operation. Then it should be as high as the outside temperature when the engine is idling. If not, then that's the solution!

If no difference is discernible, then examine the LLK! If it is properly energized, there may be something upstream!?! At such high intake temperatures, your fuel injection amount will definitely be reduced.

I have a Je-Design front bumper on top... but the car was already going 220 with the bumper... I've had it like that since delivery...

I'll remove the fog lights soon; they're right in front of the LLK...

Let's see if it works...

Bitte gib den deutschen Text, den du übersetzt haben möchtest.
http://www.ibiza-forum.de/gallery/data/media/137/debaser.jpg

Mine:
http://www.8ung.at/blackmagic/pictures/blackmagic.jpg

From what I can see, the air intakes are likely not affected by the JE modifications. However, you should check to see if the LLK is still completely sealed. If it's not, the air will find the path of least resistance and bypass it. But as I said, first check the temperature sensor for plausibility!