VANOS Adaptation Values

[Tbonem3]

Based off what Martyn wrote on page 1:

Because the cam isnt adapting your value is 0.

[Tbonem3]

I ask because I was under the impression that zero meant a problem, that the closest to zero you would ever get is .1.

[Cubieman]

At least it's adapting now!

Your ignition adapts look good, no timing being pulled so that's a bonus too.

OK Martyn, I just can't help it, I have to pick your brain again and confirm one thing so I can sleep.

Are these the correct offset values for US Cams? These are the values I flashed:


Also, as I understand the Vanos can adapt up to 8°, so does that mean you may see a reading as high as 8.0, or as low as -8.0 on your adaptations?
Is -4.30 considered "out of spec."? If so and assuming I have the correct offsets accounted for what would I look into? Physical enigne timing at that point or is there more to it?
Thanks Martyn, you've been such a big help.

[Cubieman]

Should this tool be used right after driving or while the engine is running?

last time i plugged it in (car not running), my inlet was 0, but I don't have csl software.

You do not need the engine to be running, ignition should be in position 2. As to when to run the test I do not know, my GUESS is that when you get back from a drive and read adaptions its simply what was stored in the computer up until the point you shut the engine off.
Off hand an inlet adaptation value of 0 would seem to be a good thing, a nicely timed engine. Mine was 0, but I also had an inlet error due to incorrectly set cam offset values by Kassel.

[Tbonem3]

Should this tool be used right after driving or while the engine is running?

last time i plugged it in (car not running), my inlet was 0, but I don't have csl software.

[Martyn]

At least it's adapting now!

Your ignition adapts look good, no timing being pulled so that's a bonus too.

[Cubieman]

So I reset the values to what Martyn posted then flashed the DME, reset adaptations and cleared the error code (94) for the inlet vanos.
After a 30 min. drive in the first four gears and running it up to about 7.5k max a few times I read the adaptations. Inlet seems a bit high,, anyways here are the results:

[Cubieman]

FYI

Nice man. I just got DIS on a laptop tonight so hopefully I'll be able to do that shortly! I'm so far in the weeds I can't see but I am still having fun.

[Daniel]

FYI

[Cubieman]

Progress, thank you guys.

And Beef, sorry for dragging the thread to the bowels of newb crisis mode hell!

[Martyn]

Those offsets in your screenshot are for CSL cams, as suspected they weren’t changed in your tune.

[heinzboehmer]

Is "AVAN1" Exhaust and "EVAN1" Intake?

Yes

[Cubieman]

Hey Martyn, I am having problems in that I'm not sure which is which. Yours says "intake" or "exhaust" Vanos Offset, mine is just saying AVAN or EVAN and your screen shot shows a compare bin, mine does not.
Is "AVAN1" Exhaust and "EVAN1" Intake?
I loaded up another partial read and that was from my stock US DME, so my thoughts that the CSL flashed DME showed up differently than yours in TunerPro because its "in German" seem to be misguided. Were you using a different XDF than the one I got, does it matter?

Edit: Also the XDF I downloaded via your link was all text and I saved it into notepad. When I search for it in TunerPro I have to set the browse in the drop down to "all files" for it to show as opposed to "XDF Files". I did change the extension to .xdf but it still reads in windows as "...".xdf.txt
If you read the top of TunerPro in my screen shot you will see what I am referring to.
Thanks for your help, this stuff is beyond me currently. But I'd like to learn.

[terra]

Terra, Martyn, and others who have more experience with this than me, am I correct in saying the +-8º is how much the VANOS can adapt to a (slightly) mistimed engine, but the actual VANOS adjustment range is a separate value that is not affected by these adaptations?

That is my understanding based on vanos test results. Now if the car is simply lying about how far it’s moving the cam, perhaps not.

[heinzboehmer]

I know the timing wouldn't have changed, its just Kassel is so adamant they have US spec. offsets in their tunes I am starting to second guess myself.
I did make a point of pulling codes before the swap, it wasn't the day of the swap but about 5 days beforehand.
I was pulling codes weekly up until the swap because I had an EGT sensor error so I was monitoring that. I am not %100 certain it happened after the DME swap but I am very confident that is indeed the case.

If you read your tune and pull it up in TunerPro (no need to make any changes) you can confirm whether or not it has the correct offsets for stock cams. Just follow what Martyn said and make sure K_EVAN1_OFFSET and K_AVAN1_OFFSET match.

I read it the other way. You could actually be a bit sloppy in your physical timing, and the ECU can adjust +/- 8.

That's what I understood as well.

Terra, Martyn, and others who have more experience with this than me, am I correct in saying the +-8º is how much the VANOS can adapt to a (slightly) mistimed engine, but the actual VANOS adjustment range is a separate value that is not affected by these adaptations?