Playing around with the 2.7 software (ECU and TCU)

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From WinOLS

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Torque convertor lock-up and unlock.

Work needs to be done here too.

[JeanLuke]

Can we have a refresher, please? What "toys" are needed to play with the software and where is the best place to get them? (I recall seeing it somewhere around here, but cannot find it now.)

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Originally Posted by JeanLuke

Can we have a refresher, please? What "toys" are needed to play with the software and where is the best place to get them? (I recall seeing it somewhere around here, but cannot find it now.)

Here is an great website for getting started with ECU tuning. It will show an image of the MPPS V13 required, and explain the software. It is very well written. I am on the search for a better way to create the "checksum" and will post on this thread once I find something.

http://www.lostjeeps.com/forum/phpBB...p?f=98&t=78418

For the TCU, you need a KTag. This process is more involved and requires opening up the TCU and soldering on additional wires. The original KTag is very expensive, but there are many clones around that appear to be working well.

The ECU tuning can be done directly through the OBD port with no physical modifications.

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As a side not here. AdrianD is without doubt the man to ask the detailed questions to. I am just starting out with car ECU tuning, but learning fast. I do have a strong history of writing and modifying machine code for industrial equipment, but never a car so far.

If you just want to view your tune you need the MPPSV13 and its software to get the maps out of your car.

Then there is a free version of a program called WinOLS. This allows you to view your maps, but you do need to set up the maps using the addresses provided earlier, or merge someone else's tune that has already got the maps defined.

From that point is where you want to make some changes.

So there are several options here. From programs called "hex editors" to proper packages. The paid version of WinOLS will allow you to change and save your tune. I am cheap, so trying to do it for as near to free as possible. I have started using a free version of a program called VAG EDC15P+ Suite. It is not specifically designed for our cars, but does allow maps to be viewed, changed, and saved. It is slightly harder to set up than WinOLS, but I haven't actually played with it too much yet to see if it is just me.

Once you have saved your your changes you need to fix the "checksum". The most common method for this can't be discussed openly on forums it would seem, so I won't.

This is why I am looking for another free way to calculate the checksum. I am not putting that much effort into this right now as I still need to wait 2 weeks for my MPPS to arrive. It will start becoming a bigger priority soon, but trying to get my map builder working as I think it will help get changes done more efficiently.

AdrianD. Please make sure you correct me with anything I say that could be misleading or wrong. I want to share everything I learn, but not lead anyone down the garden path.

[JeanLuke]

I've just ordered the MPPS v21 from AliExpress. I know that v13 is recommended, but it was always couched with newer versions might work. For $11 it's worth a try. The documents for v31 list the 2.7 CRD as compatible. We'll see.

Sent from my moto g( plus using Tapatalk

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Originally Posted by JeanLuke

I've just ordered the MPPS v21 from AliExpress. I know that v13 is recommended, but it was always couched with newer versions might work. For $11 it's worth a try. The documents for v31 list the 2.7 CRD as compatible. We'll see.

Sent from my moto g( plus using Tapatalk

I did wonder about the V21. Let us know how you go with it once you get your hands on it.