Diagram Analysis: LMM Golf 4, 66kW

Hi,

Can someone please take a look at my graph and let me know if there are any noticeable anomalies regarding the air mass value or boost pressure?

Thank you in advance

edit:

Golf 4 1.9 TDI
1999
MKB: AGRICULTURE
66KW

No, it's a colorful picture with little value.

What is the intention behind the thought?

Hello,

It seems to me that his performance decreases after approximately 2500 RPM. Furthermore, the value of the LMM (likely referring to a sensor or component) decreases from this speed. Now, I would like to know if this is a typical behavior of the LMM, where the measured value decreases as the speed increases.

Hello

Get a vehicle scan using VCDS.
and log in
- RPM
- Air mass
- Suction tube pressure
- Injection quantity
from 1500-4000 in the 4th Okay.

Please post this log file here exactly as is, so I can better assist you.


Empire

Good morning,
I am now adding the log from yesterday. I created the diagram from this log. The measurements were taken for MWB 8 and MWB 10 in 3rd gear, from approximately 1500 RPM to 3300 RPM. In the last column, I calculated the current load pressure (Load Pressure (CURRENT) minus the current air pressure value).
Please perform a log today, as you recommended, of running the engine from 1500 RPM to 4000 RPM in 4th gear.
The fault memory is clear (regarding car scan); The vacuum hose from the turbocharger to the boost pressure control valve was replaced by me 2 days ago because it had broken/cracked (it was mounted securely with spring clips).

by the way. The log file attached, which was already split using csvconv from VCDS,

EDIT: Attached is the log file with the values for 4th gear. I pressed the accelerator twice to full.

Hi,

From 3600 rpm, you will experience minimal power loss, as the limit imposed by air mass falls below the limit imposed by engine speed.
For the mileage and, consequently, the wear and tear, still acceptable.

Best regards, Rainer

Good evening,

would it still make sense to verschandeln the LMM once, or are the values appropriate here? Otherwise, thank you very much for the thorough analysis of my log

Piaggiorider wrote:

Good evening, would it still make sense to verschandeln the LMM once, or are the values appropriate here? Otherwise, thank you very much for the thorough analysis of my log

Worn and tear is what it is, and wear and tear cannot be removed.

New, but use an original, or BOSCH 0 986 280 202

In exchange for 62.98€

Greetings, Mpire

Hello,

Just one more question, please. Can we therefore conclude that when evaluating the LMM status, I only need to ensure that the 'Limit based on air mass' remains above the value of 'Limit based on RPM' - or does the absolute value of the LMM also play a role here?

Piaggiorider wrote:

...that I only need to consider the "Limiting based on air mass" value to be above the "Limiting based on RPM" value during analysis of the LMM status

Okay, hier ist die Übersetzung:

Correct!

Thank you very much