Hello!

I have a VW Passat 1.8T AWT from 2003 where I would like to delete the SAI system because previous owner installed APU cylinder head without SAI.
So, he drilled a hole in a SAI hose, and with the result that the Engine MIL light comes on after a couple of miles.

This is my first time attempting something like this, I have tried searching for XDF files, I have found a couple of different ones, but I don´t know if they are complete.
Some with exact number, and some with DC or CH at the end.

I have the original bin file and have tried opening it with the XDF files that I found,

Also, there seems to be a couple of different solutions on how to remove this system.
I would like to leave it as it is, in the car, and replace the hose with the drilled hole, so it looks stock.

I have checked this link https://s4wiki.com/wiki/Tuning
I don´t want to mess upp here, which way should I go?

When I open .bin and .XDF file, and look at a value in Parameter Tree, is it the bin value or XDF value that I am looking at?
Just thinking that it is a little confusing, because different XDF file, gives me different values in the parameter tree.
The 018CH xdf file have very different value than the other files that I found.
All files is from this forum.

And, Is it possible to tune it at the same time?
This is way above my knowledge though.

Thanks!

Thanks!

When I started to delete the SAI coding I had several DTC´s.
Look at my attached picture..

I have since then replaced two hoses, one hose that goes from the SAI pump to the valve on the backside of the cylinder head.
And the 3-way hose that are on the cylinder head to the crankcase ventilation.

Then modified my bin with tunerpro.

ESKONF byte 5 and 6 to FB and 3C

• Zeroed out MSLUB
• Zeroed out MSLBAS
• And then ran me7sum and me7check, and flashed the file

SAI fan don´t kick in on cold start (or never), and everything seems to be fine, the car runs much smooter and better, better than it ever has when I have owned it.
But, when it get´s hot, or atlest semi hot, I still have one code left and high idle.
Before I hade like 1500rpm at idle, but now it seems to be pretty stable at 1200rpm.

And readiness is complaining about SAI, EVAP, Catalytic converter.
Maybe i didn´t run it long enough for every readiness to complete, have only run it for 5-10 km.
But, it sets the same DTC as before (16891), maybe SAI DTC also will come back, it took a little while before, I don´t know.

Have I missed something? Or do I have a leak somewhere that I haven´t located yet?
Fuel trims are at spec, but maybe a little much lean on the long term, -7%

I thought that the readiness monitor for SAI would pass right away..
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What do you mean?

Oh okay, sorry!
I will keep that in mind in the future.
My computer is a windows based tablet without a physical keyboard.
I will try to locate the printscreen button...