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Discussion Starter #1
So, here is the tune I am currently running. It's a good, conservative tune that I feel is the reason I still have an AWD trans, despite hard driving with some aftermarket parts.

None-the-less, I am always looking to improve.

If anybody notices an area I could observe to improve, I would welcome the advice (personal tuning is new to me...actually owning a vehicle worth tuning is new to me...).

http://www.mediafire.com/?5xv0hmlbj2z
 

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'06 AWD
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Not that I would know what I'm looking at but what kind of file is it? I downloaded it but don't know what program to run to open it with.
 

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06 TBSS 2WD
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346 Posts
So, here is the tune I am currently running. It's a good, conservative tune that I feel is the reason I still have an AWD trans, despite hard driving with some aftermarket parts.

None-the-less, I am always looking to improve.

If anybody notices an area I could observe to improve, I would welcome the advice (personal tuning is new to me...actually owning a vehicle worth tuning is new to me...).

http://www.mediafire.com/?5xv0hmlbj2z
Are you running 93 only? I have 5-6 degrees more timing in both high and low octane tables with no KR. Other than that, you could probably add .2 to the PE table.
 

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Discussion Starter #5
^^^ it is a .hpt file...I thought that only HPTuners could read it, but I could be wrong. I need to find a better way to host files, though.

Are you running 93 only? I have 5-6 degrees more timing in both high and low octane tables with no KR. Other than that, you could probably add .2 to the PE table.
I'm running on 92 octane (all you can get out here). I could, however, be inclined to add an octane booster, if there was enough power to make it worthwhile. Right now I have 0 KR, which is awesome, but my LTFT's sit around -8%, which is pretty rich. Could this mean my MAF would require more accurate dialing in? What can I check for that?
 

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2006 TBSS
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Whats with the shift pressure!?! I know the max pressure is at 93.. But, why 108 in the tables? And holy shit your MAF Low table is foobar!! You probably don't notice it tho since the VE table is influential before something like 3k rpm.. I disabled dynamic airflow and calibrated my MAF via wideband.. What are you using? LTFTs?

Maybe you have a 100mm MAF? You still need to take care of that odd looking dip from 3400-4000hz.. Your values are double what mine are in some spots.

Now.. the high table is crazy too.. Why is it peaking at 10400hz? 5800 high and 5800 low don't match either.. 5650hz holds a higher value than 5800hz on the high table. You are also commanding ~11.7 AFR on the PE table..

Do you still have cats? If not, disabled COT. IAT spark retard is a little aggressive and main spark table is a little low.. Don't forget the PE/COT Spark Advance Correction values and how they factor into your final spark.
 

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06 TBSS 2WD
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Whats with the shift pressure!?! I know the max pressure is at 93.. But, why 108 in the tables? And holy shit your MAF Low table is foobar!! You probably don't notice it tho since the VE table is influential before something like 3k rpm.. I disabled dynamic airflow and calibrated my MAF via wideband.. What are you using? LTFTs?

Maybe you have a 100mm MAF? You still need to take care of that odd looking dip from 3400-4000hz.. Your values are double what mine are in some spots.

Now.. the high table is crazy too.. Why is it peaking at 10400hz? 5800 high and 5800 low don't match either.. 5650hz holds a higher value than 5800hz on the high table. You are also commanding ~11.7 AFR on the PE table..

Do you still have cats? If not, disabled COT. IAT spark retard is a little aggressive and main spark table is a little low.. Don't forget the PE/COT Spark Advance Correction values and how they factor into your final spark.
The PCM can't read any higher than the 500 or so on the MAF. It looks like the 100mm MAF also. The values are more than mine...but I'm still tweaking. I don't know about how you get 11.7 AFR with his PE table, I'm commanding more fuel and was at 12.5 wideband dyno. His IAT spark retard table is zeroed until 140*. I don't see a dip in his MAF from 3400-4000hz?
 

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Look at the MAF values plotted on a graph.. Its supposed to be a polynomial (?).. very very small exponential growth... The increments between values rise as the hz rise.

To tune the MAF you must disable dynamic airflow otherwise the VE airflow will have an impact on fueling below ~3200 or so rpm. On the topic of PE table.. its 14.7/EQ ratio (actually, I think it may be 14.68/EQ Ratio)... Its not exactly how much fuel your commanding..

If your AFR error vs MAF is near 0% the PE table cmd'd afr will be spot on.. I command 12.7... and its 12.68, 12.75.. etc.
 

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Discussion Starter #9
^^^ I do have a 100mm MAF, both cats, and am running very rich. Take note, I'm going to have to sit down and research what you guys wrote before I have a clue what you were talking about :jester:. I'll do that, and see what I learn. The peak in the MAF chart was as high as the ECM let you enter (that I do know).
 

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Oh yeah.. 512.. What do the readings peak at? 10k? Besides the physical advantages.. does the meter have a higher sample rate or better resolution?
 

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Might want to attach an exported txt file for that one! Nice of you to help out..
 

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When you are viewing the table, click the icon of the "floppy disk".. this is in the table window... Not the main window.. This will export the values into a text file that is loadable via the button to the left of the icon you clicked. Hope this helps you out!
 

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Discussion Starter #15 (Edited)
^^^ SO...Now that the weekend is slowing I can get back to this...here's what I changed so far.

I adjusted my shift table properties to have slightly softer 3rd gear shift pressures...don't need it to break my neck when I drop into third at highway speeds.

Second, I entered in AllBlkSS's data for the MAF, because after plotting them both, his looked like a more accurate option...mine was adjusted via LTFT's, as Blades had said. Remember, I'm new at this, and do not yet have a wideband.

Third, I added 3 degrees to the entire Main Spark High Octane table.

For now, I'm going to focus on getting the MAF dialed in correctly...this seems like the proper place to start learning this process.

Thanks for all the help so far, guys...I'm sure I am going to have a LOT more before this is over.
 

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Discussion Starter #17
Thanks for the link.

I took a log last night before disabling the DA. I was running a lot less rich (which is good), but I was getting some serious KR (it actually spiked to 16 at one point).

I pulled the 3 degrees of timing back out, and made the changes to run only on MAF. I took a very long log while driving to the family BBQ this morning.

It looks like I need to add air on the bottom, and remove air on the top (I think). When dialing these in, should I use larger or smaller denominations (ie, make changes in single percentages, or 5% at a time)?

I have the log if anybody wants to look at it, but I need a better way to post them up before I try that again.
 

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Woah fuck.. 16? Thats like.. an injector not firing. Who pooped in your gas tank? Also.. make small small adjustments when adjusting MAF. You really really should do this w/ a wbo2 and closed loop disabled.. Did you reset the fuel trims? Adjusting the lower end of the MAF without running open loop w/ wbo2 is shooting in the dark.. If I were you, I'd get a wideband! Or find someone with a similar setup w/ a wideband and ask if you can borrow their tables.. Make sure they are running the same gas.

Perhaps I should get the 100mm MAF.. I don't think I would help much because I don't really have average mods. Post the log!
 

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Discussion Starter #20
Yeah, even I knew 16 was all kinds of not good. What's wierd is I can't tell what caused the spike, and it only happened one time.

I'll post up the log for it when I get home tonight. As for the wideband, I'll see what I can do...
 
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