VANOS Adaptation Values

[Tbonem3]

I just pulled adaptation values. Could not get the oil up to full temp because track car. 170 is about as high as it gets idling and 45 degrees outside.

Looks like I’ve got some pretty good numbers! I better since I retimed it 5 times.

But aren't the adaptation values just stored from the last time the car was driven?

I think only the actual vanos test should be done on a warm engine. The adaptation values can be retrieved at any point in time.

[maupineda]

I have done VANOS work on the Z4M twice, and never had to reset adaptions, but we have different ECU's

[Cubieman]

But, I'm in EU, does the EU have different offsets to US standard?

I do not believe that is the case, to my knowledge it's either CSL cams, or what I've called "US cams", but a more accurate description would be "non-CSL" cams.


I would check your offsets, see if they are what mine turned out to be (CSL), if they are wrong changing them is easy. If you can view your offsets your 80% the way there to changing them.

You need a partial BIN read (BMW Flash)
Tuner Pro program (free)
Correct .XDF file for CSL software (linked by Martyn in this thread)

[Arinb12]

I had CSL cam offsets which caused a code and failed vanos test post-tune. Read back in this thread, Martyn explains how to change CSL offsets to US.

But, I'm in EU, does the EU have different offsets to US standard?

[Cubieman]

Hi,

Would anyone be able to help me with this too?
I have a ttfs "CSL tune" and I'm in the EU. I'm having timing issues, but I'm sure it's not timed wrong.
Could be that it's setup for US CSL cams?

Any chance someone could help?

I had CSL cam offsets which caused a code and failed vanos test post-tune. Read back in this thread, Martyn explains how to change CSL offsets to US.

[bigjae46]

Hi,

Would anyone be able to help me with this too?
I have a ttfs "CSL tune" and I'm in the EU. I'm having timing issues, but I'm sure it's not timed wrong.
Could be that it's setup for US CSL cams?

Any chance someone could help?

I’m believe the CSL cams have different offsets which would cause an issue.


Sent from my iPhone using Tapatalk

[Arinb12]

Hi,

Would anyone be able to help me with this too?
I have a ttfs "CSL tune" and I'm in the EU. I'm having timing issues, but I'm sure it's not timed wrong.
Could be that it's setup for US CSL cams?

Any chance someone could help?

[bigjae46]

I just pulled adaptation values. Could not get the oil up to full temp because track car. 170 is about as high as it gets idling and 45 degrees outside.

Looks like I’ve got some pretty good numbers! I better since I retimed it 5 times.






Sent from my iPhone using Tapatalk

[Slideways]

Dumb question...I just ran a VANOS test with the car cold (hasn't ran for about a week) and it came out as -1.49 intake and 1.1 exhaust. So I'm good to go, correct? Or do I need to warm it up?

I believe in the DIS, it states that the engine needs to be at a certain temp. I'd perform the test at operating temperature.

Edit: Engine oil temp > 40C Coolant temp > 75C

[bigjae46]

Dumb question...I just ran a VANOS test with the car cold (hasn't ran for about a week) and it came out as -1.49 intake and 1.1 exhaust. So I'm good to go, correct? Or do I need to warm it up?

[Tbonem3]

Haha thanks, but let me do another read after a new drive (in the middle of a detail).

[Cubieman]

Ya, that might be the case as the engine runs flawlessly in general, never any codes. exh # was only 2, so I suppose inlet could actually be zero. Thanks Terra. I'll pull the numbers again after a drive, see if there are changes.

I wish my inlet vanos adaption was zero with no errors, no fair!

[Tbonem3]

Ya, that might be the case as the engine runs flawlessly in general, never any codes. exh # was only 2, so I suppose inlet could actually be zero. Thanks Terra. I'll pull the numbers again after a drive, see if there are changes.

[terra]

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

A true 0 might be possible, but it seems unlikely to actually occur in real life. If you have no error codes, then it very well could just be the cam is spot on.

[Cubieman]

Based off what Martyn wrote on page 1:

Yeah man, I'm sure Martyn or someone that knows will chime in. What he said about the 0 value and the fact you have a value of 0 is curious.
After I reset my offsets I can't say I noticed any difference in the way the car drove. I thought MAYBE it was ever so slightly slower. So when my inlet was NOT adapting compared to now after the reset when my inlet IS adapting I have yet to tell a difference just from driving around, although I have only driven it for about 30 minutes since I flashed it.
Do you have DIS so you could run a Vanos test?
My big thing was the error code, I'll have to keep on eye out, the laptop rides shotgun now.