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No good (very bad)... you're commanding stoich AFR at WOT, see frames 15481-15654...Quote:
Originally Posted by truethinker
something is really wrong and I can't see what...
set these as follows:
- B3643 to 1.0000,
- B3644 to 0.00625,
- B3645 to 0.00625.
I know why, I actually realized that I made a pretty drastic mistake shortly after I got home from that drive. . . .
I read the bellow pasted line in the VET Summary Notes and entered the EQ value into the table referenced. . . not noticing that it was in lambda and as such I was commanding a lean condition.
"5. B3618: PE Modifier Based on Rpm (EQ): 1.16
Safe adequate Fueling regardless of Fuel Type"
That mistake is fixed in the tune file I posted.
Ah, ok, I couldn't see the reason why PE wasn't being commanded (so I thought the PE ramp rates were wrong).
Sorry about that, I should have noted that in the post. Aside from the obvious PE issues, is it normal for all of my VE percentages to be reading that much below stock? Just seems strange to me but then I have no real past experience to rely upon.
Hi Jesse,
It means that the MAF table is not correct.
( so your Calc.VET effort will do this:
- correct the MAF using SELBEN;
- calculate a new VE based on the corrected MAF )
I think I got a better log today and definitely got a good adjustment on my MAF.
I saw a couple of issues though.
In this screenshot you can see a spike in my LC-1 Lambda reading. Just curious what that might be.
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The other issue I noticed is at WOT. The computer commands an EQ of 1.16 as suggested but the WBO2 shows that I go more and more lean the higher the RPMs go. Watch between 23757 and 23900. Could this just be the fact that the truck is in need of a tune and should be better next run(once I apply these maps)?
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Thanks again for all your help Joe. Hope I'm not bugging you too much as I try to get this down.:pokey:
Sorry, I have been away during the weekend, I will look at this today... no worries :)
Hmmm, I'm not sure what the lean spike is, how often do you see it.
No problem man, you're aloud to go away from the forum on the weekend. haha
That spike was only there once or twice over the drive.
I ended up with an overall difference of 23% on my MAF table. Was surprised to see that much of a change. So now I'll go do another log and see if my VE number come in a little higher.
Looks like the lower MAF is close; the upper part looks like it will be ok ( your old MAF doesn't look quite right ), just follow the trend all the way up (manually fill in those 2 holes).Quote:
Originally Posted by truethinker
VE table is also close, fill in those 5 holes also.