Please comment on my log, more specifically the lambda values.
#1
AudiWorld Senior Member
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Does this all look ok? Ambient temp was 45deg F. I'm at sea level.
<img src="http://images30.fotki.com/v1038/filebRwA/600d0/1/1251546/5603962/Log.jpg">
<img src="http://images30.fotki.com/v1038/filebRwA/600d0/1/1251546/5603962/Log.jpg">
#4
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Your RPM, MAF, and Boost are all over the place, so I don't think this is a true Lambda read. Although I see you've highlighted the gray area so I'm assuming that is the third gear portion. In which case, it isn't bad. Your EGT are higher than I'd like, but your IAT are lower than I'd have thought, and better than I've seen many K04's running at.
Also, are you really sure you know what Lemmi is doing? On some of those tweaks, it isn't really adding fuel, per say, as much as changing how the ECU views as what is "normal". I'm not saying this as a wise-***, because I'm clueless on Lemmi.... and learning a lot about the same stuff from AZ/AG and Vortex since I'm doing tweaks, too; so I'm just asking in a non-confrontational way.
I wouldn't mess with Lemmi until you get a more solid single log with WOT pull from 2500RPM to redline in 3rd gear, with less blocks logged at a time (or run turbo mode if you can), so you can get more reads on lambda values from low to high RPMs. Your actual is pretty close to requested on Lambda, but there aren't enough reads to know how quick it is really adjusting to requested values. The first three reads (IIRC) are the same RPM value on your log, so once you knock those out of the log you really don't have that many scans within the shaded gray area. You're only getting a scan every 500RPM. Need more info.
Also, does a K04 really taper off on boost that early? Wow, I'm so used to seeing 2450 all the way to redline that I'd forgotten what it used to look like.
Also, are you really sure you know what Lemmi is doing? On some of those tweaks, it isn't really adding fuel, per say, as much as changing how the ECU views as what is "normal". I'm not saying this as a wise-***, because I'm clueless on Lemmi.... and learning a lot about the same stuff from AZ/AG and Vortex since I'm doing tweaks, too; so I'm just asking in a non-confrontational way.
I wouldn't mess with Lemmi until you get a more solid single log with WOT pull from 2500RPM to redline in 3rd gear, with less blocks logged at a time (or run turbo mode if you can), so you can get more reads on lambda values from low to high RPMs. Your actual is pretty close to requested on Lambda, but there aren't enough reads to know how quick it is really adjusting to requested values. The first three reads (IIRC) are the same RPM value on your log, so once you knock those out of the log you really don't have that many scans within the shaded gray area. You're only getting a scan every 500RPM. Need more info.
Also, does a K04 really taper off on boost that early? Wow, I'm so used to seeing 2450 all the way to redline that I'd forgotten what it used to look like.
#5
AudiWorld Senior Member
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to a certain degree. I must say, the car feels like its running better. Thats why i posted this. If my fueling is totally off, i was hoping someone would have said something. At least i'm not running lean.
I still feel like something is not right. I feel like i only have power between 3500 and 5500. My egts are too high also.
My IATs are low prolly because it was 45deg f.
I'm thinking i have a bad n75 valve or my wastegate is not fully closed. I have mentioned this in the past. I just havent had the time to pull the turbo. If the wastegate is not fully closed, the turbo would have to work twice as hard to meet requested boost. So by overspooling, it gets too hot. Thats what i think is throwing the whole thing off.
I still feel like something is not right. I feel like i only have power between 3500 and 5500. My egts are too high also.
My IATs are low prolly because it was 45deg f.
I'm thinking i have a bad n75 valve or my wastegate is not fully closed. I have mentioned this in the past. I just havent had the time to pull the turbo. If the wastegate is not fully closed, the turbo would have to work twice as hard to meet requested boost. So by overspooling, it gets too hot. Thats what i think is throwing the whole thing off.
#6
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Secondary is pointless, just adds fuel at idle and under low loads. Bump ch2, "increasing load". Make 5-10% changes at a time, because you will not see changes bumping by 1-2%.
Good luck.
Good luck.
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#9
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If it's a forge, are you using the yellow spring? I had surging issues, thought it was ignition/timing related, then started looking into the waste gate and n75, turned out to be the spring in my bpv was too soft.
Logging the n75 will just show how hard your car is trying to hit requested boost. You should see it hit around 95% to spool-up. Once requested boost is reached, it should taper off to around 60-70%. If you are staying in the 80-90% range there is a good chance you have a leak. Since your fueling looks good, your leak is probably internal, like a soft bpv spring.
Logging the n75 will just show how hard your car is trying to hit requested boost. You should see it hit around 95% to spool-up. Once requested boost is reached, it should taper off to around 60-70%. If you are staying in the 80-90% range there is a good chance you have a leak. Since your fueling looks good, your leak is probably internal, like a soft bpv spring.
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