Justhereforinfo

iTrader: (2)

I just installed long tubes, ory and exhaust. Already have a pretty good tune on it, so I just wanna see what my stft's are doing and adjust if needed.

So, I want to make a histogram for afr error %.

In my primary table I have:
AFR Error
Commanded EQ ratio
Mass Air Flow
AEM Wideband (input) Already verified readings match in HPT

Now for the Histogram Here's where I get lost...

I know I need to setup a histogram to plot the maf hz against the afr error, but I dont know how. I see Histogram # 1 is already setup for MAF- STFT. Do I need to modify the sensor or the filter below? Or should I be using #7 Histo VE-AFR error? I'll admit, I am lost. Been searching hpt and ls1tech for 2 days. I understand the theory, but dont know HOW to do it!

Justhereforinfo

iTrader: (2)

Ok, I see the data populating now. I used histogram #7, which shows the afr error PID plotted against the primary VE vs MAP vs RPM.

I didnt know it wanted to see MAP and RPM. They werent in the primary table.

But I dont think this is the data I need, or its not in the right format.

I was expecting to see a value that I could input into my VE table using multiply %. Or is it right...?

I've attached my config,tune and log. What is the other file you need to see?

Justhereforinfo

iTrader: (2)

I didnt disable the maf, or the fuel trims. All that data is skewed.

gagliano7

That should be the percent that is gathering in table 7. Do a test and multiply that table to your ve table and you will see the changes. All the negative # shows it is running rich. I would also put actual afr in your table so you can see the difference.

I like this link http://www.hptuners.com/forum/showth...nd-through-EGR

Justhereforinfo

iTrader: (2)

I do have a wideband input, but custom user defined PIDS dont carry over when you share config files, so you cant see my wideband.

I never turned off the stft, so I'm pretty sure the data collected here is no good. It really doesnt matter anyway, because I'm pretty sure I have either an exhaust leak next to my narrow band, or the narrow bands were damaged when they welded my v bands in.


Can you see my O2 Sensor Voltage, and does it appear normal? I thought it was supposed to bounce back and forth from 0-900mv 30 times per minute or so...

gagliano7

Something doesn't look right with your 02's. They should constantly change from 0-900mv.

Justhereforinfo

iTrader: (2)

Yea, I found several different log files floating around here and hptuners.com, and none of them look like mine. Both of my o2s drop to zero repeatedly, and stick there sometimes. None of the other logs ever touch zero.

I just had a shop remove the slip fit connector on both of my long tube headers, and weld in v band clamps. The weld is right next to my o2 sensors. Truck ran fine on the way to the shop, and ran like crap on the way home.

I have a new set of o2s coming in the mail tomorrow. Ill throw them in and scan again.

joecar

The NBO2's should have been unplugged from harness prior to any welding on the exhaust.

Justhereforinfo

iTrader: (2)

I would prefer they were unscrewed from the exhaust pipe instead. I'm kicking myself for tipping the guy $20 right now...