Newbie learning.... EDC16U34

[jasonrmh]

Hi All,

Firstly, thanks for all the info on this forum, there seems to be some very knowledgeable and helpful members!
Hopefully, you don't mind another newbie!


I want to start learning about the EDC16 as that is the ECU on my own car.
I want to start by identifying some basic maps and EGR off and learn as I go.


Attached is the file read from my car by mpps.


2006 VW Golf 5
2.0 TDI PD 140s (103kw)
Ecu: EDC16U34
Ecu No: 03G906021KK
Sw: 381019


I am using WinOLS 2.24
I have read some guides, watched videos etc. But many of them say what to do, but not really why (for further understanding)?


Questions:
1. When I open the original file in WinOLS, it tells me 2 checksums not correct.
It then says a checksum needs to be corrected even though this seems be an original data file.


How can this be possible when the file has not yet been modified?


2. It appears there are 2 sets of maps present.
Is this for different gear boxes (manual / dsg)?


3. I think I have identified EGR maps at:
187DA8
193364
1C4C18


Is this correct?

4. How do I identify EGR hysteresis maps and how do they relate to the actual EGR maps?
I understand they will be 20x1 (search for 0020?)
Will they be present in both sets of maps?


4. How can I be confident in the checksum before writing the file back to the car via MPPS?


5. Is there a damos file to help with my learning? Does damos vary by sw version?


Any help / advice appreciated.


Thanks
Jason

[septic]

Good questions, I'm working with a different ECU but wondering about the same things.

Hopefully someone more knowledgeable will chime in.

[rfernandes]

hi there...for start i would tell you to use ecm just to find the address on winols..i do like that when i start on this..
yup you find 3 egr maps

[jasonrmh]

hi there...for start i would tell you to use ecm just to find the address on winols..i do like that when i start on this..
yup you find 3 egr maps

Thanks for the tip.
So I got ECM Titanium and found a matching driver.
ECM confirms I have identified the EGR (MAF) maps correctly but does not help identify the hysteresis maps.

I have looked in WinOLS again and think I have the hysteresis, but it would be great if someone can confirm I am correct.

So, further down the map from the EGR, there are some 'calibration' maps. Close to the calibration maps are what I think is the 5 hysteresis 20x1 maps.

2018-10-08_22-01-06.jpg

Does this look correct?
Slow progress, but good learning!

How do they relate to the EGR map?

Thanks
Jason

[jasonrmh]

Anyone able to have a look and confirm I am on the right track?

[coesfelder]

here you can look

[jasonrmh]

here you can look

Brilliant, thanks
What are sgm and hex files?

[jasonrmh]

here you can look

I couldnt make much sense of the A2L file. It is all in german, so will attempt to use google to translate.
Also, im not sure if an offest is required as some maps were disable, maybe its for a different software version?

[jasonrmh]

Some progress today.

So far I think I have identified

• EGR maps
• EGR Hysteresis maps
• Drivers wish maps

I have modified my original file for EGR off and use WinOLS to correct the checksum.
I have successfully flashed the modified file to the car using MPPSv16!

Now to test drive the car and see if a DTC occurs due to EGR (it has been physically deleted also).

Will report back.

Thanks
Jason