Derek:
Those CALC.VE Table Values you posted seem unusually high...
From your log, I am getting a constant DYNAIRTMP of 194.9C. Obviously something is wrong..
Derek:
Those CALC.VE Table Values you posted seem unusually high..
From your log, I am getting a constant DYNAIRTMP of 194.9C. Obviously something is wrong..
I don't know if the matching of PIDs in a log to the slot# matters; I suppose they do since I shuffled the numbers around and you ain't seeing what I'm seeing... on my end I'm seeing DYNAIRTMP ranging from 38.5 to 70.7.
For me, DYNAIRTMP is CLC-00-003 and the VE_Table is CLC-00-004. I adjusted both the slot definitions and the param reference numbers to match.
Or perhaps I'm looking at things wrong, but it doesn't look like it was constant on my end.
Yea, it is probably because my DYNAIRTMP.DMA is a different Calculated PID. I didn't think about that.
Do your CALC.VE Table #'s look 'sane'?
I don't really know how to define "sane"; that was what was confusing me a few posts back - the averages seem to range from about 51 (2800 rpm at 15kPa) to roughly 81 (2400 rpm at 90kPa)?
Stock tune had 40.19 and 73.25 in those same locations, so I suppose both are improved by ~10ish?
Edit: I find myself thinking that the reordering was not needed; the MAP wouldn't select the new DYNAIRTMP and I found myself thinking it was because slot 3 was depending on a variable defined later (it was actually because I hadn't selected the new PID in the PID list)
Post your calc_pids.txt file.
Dereck:
Just to clarify..You are still running the stock 98 LS1 Tune, correct? And, your O2 sensors are located opposite each other? I.E. One on Driver's side, and one on Passenger side?
We need to work on these issues separately, but I still do not know if I understand the pattern of your narrowband switching. They almost seem in unison at times.
I also see 4 degrees of KR at one point. Looks like you did a WOT at a fairly low RPM. So, I don't know if you are simply bogging the engine and picking up KR, or if it is that Texas heat.
So a few issues. but I guess we can address them one at a time..
Yes - O2 sensors are close to the back ends of LT headers, one on each side.
This is the stock 98 LS tune, except for stoich has been set to 14.12 and we've altered the MAFFREQ table.
As requested, my calc_pids.txt - calc_pids.txt
If all goes well, I'll be invalidating all this work today; in theory I'm picking up a flowmaster exhaust setup to replace the 3" duals (unless the deal falls through), so there will be quite a bit more backpressure in the system.
Your CALC.DYNAIRTMP graph follows your IAT (I set the °C scale to convert with the 0-240°F scale on my chart, see attached pics)...
why are your IAT's so high...?
I tweaked your calc_pids.txt a little to make VE[g*K/kPa] show up, it seems a little high in places.
Remove the GM.DYNAIRTMP_DMA pid from your pidlist before taking another log.
See if you can hold the throttle steadier for longer, not always possible.
Posting Permissions
Reply With Quote