Changing AFR In Link v3

[RocCitySlayer]

What value targets do I need to change in link to lower my AFR? At idle link says 14.2-14.9 and When I hit boost it drops as low as 8.5
But In my thread about Glowing dull red manifold lastnight people stated that I may be running lean but how could that be? Also my wideband reads 12.5-13.5
And drops to 10.2 When link says 8.5

 

[YanDsm]

Everybody will say : post a log please for more help!

 

[RocCitySlayer]

Just noticed I didnt post it, sorry about that. Its just a random driving log that I just took but I can do another idle log real quick if needed

It looks like im running lean from 1500rpms to about 2800rpms. But then when the turbos spooled my AFR drops to 8.5...
What do I need to adjust to change afr in the lower rpm range and in the higher?
Im nervous as hell to drive it and its my only car

 

[Dert]

I am on my phone so cant check logs yet, but I would say it sounds like you WB and afrest are not matching so link is giving you a different reading than your WB. You need to adjust your global so your WB more closely mimics your AFREST. When they are matching, adjust your deadtime and get your combinedfueltrims close to 0. Once your WB and AFREST matchup you can get a good idle log, get your cruise log, then start on you WOT tuning. I suggest doing a lot of read and video watching on ECMLINK site as well.

 

[Dert]

http://www.dsmtuners.com/forums/articles-tuning-ecu/262460-basic-dsmlink-tuning-guide.html

 

[MY1GDSM]

I'd say the info on the ECMlink web page would be more helpfull and more relivet to the OP for ECMlink then that guide for the most part. though it has some good points... .


OP,

You have quite a few things going on there that don't make sence for one you AFR isn't what your saying in the log... .

The log says it's leaning out but the front 02 isn't going along with that it's saying,
I'd definitly look into that.

As well as your using the Fuel sliders? Why? if you wondering why you hitting AFR's like that if it is in fact that rich(which it looks like it is) it's because that is close to what your trying to target for starters...

 

[My1GLaser]

According to your profile, you are running 1050s. Your global fuel should be -57% not -50.7% [(450/1050)-1]
That's why you are so rich.

Your WB isn't logging properly, so I will have to assume your 10.2 is accurate. Sometimes your front O2 agrees with it and sometimes they are exact opposites.

Your car is struggling to stay in closed loop when it should be. At the beginning of the long log you are pegged rich and your ECU switches in and out of closed loop to force the O2 to swing. Then at one point the frt O2 flatlines and I don't see how it would be that lean with your global being so far off in the opposite direction.

This is all in the first 60 seconds before you go WOT.

You need to fix your global, and do some idle and cruise tuning before you go WOT again.

How old are your Frt O2 and WB sensors?

For WOT tuning AFR, you can pull fuel with the fuel sliders. I use those rather than the airflow sliders because I like to use those to calibrate my MAS and have accurate airflow readings.

 

[MY1GDSM]

For WOT tuning AFR, you can pull fuel with the fuel sliders. I use those rather than the airflow sliders because I like to use those to calibrate my MAS and have accurate airflow readings.

Okay, or the OP can do it the right way Zero the fuel sliders out calibrate their MAS and in turn hit the target AFR, the Sliders are only going to add to the problem and it make a hell of a lot more scene(too me) to be making changes in DA then the "ol' DSMlink" way... .

I realize you have Dsmlink(based on your profile) and that is your only option... . But Suggesting someone with ECMlink to make changes that way doesn't make sence to me.

 

[My1GLaser]

Okay, or the OP can do it the right way Zero the fuel sliders out calibrate their MAS and in turn hit the target AFR, the Sliders are only going to add to the problem and it make a hell of a lot more scene(too me) to be making changes in DA then the "ol' DSMlink" way... .

I realize you have Dsmlink(based on your profile) and that is your only option... . But Suggesting someone with ECMlink to make changes that way doesn't make sence to me.

I have V3, but yes I use the ol DSMLink way still I haven't messed with DA at all. One day I'm sure I will, but I just haven't sat down and decided to learn to retune my car that way. If I could stop breaking my driveline I might have the time to mess with learning DA. Damn 35 psi at 4k is fun but hard on my poor DSM!

My AFR is relatively stable and my car performs well, however it is possible that you have inspired me to look into DA in the near future...

 

[RocCitySlayer]

Ok I am going to try to adjust a few thing that you guys have suggested. Hopefully it helps my problem. The car has been fine since febuary without problems with the tune. Now for some reason it just started acting up about a week ago.

Idle seems to be almost perfect