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Beta version 5.1.1948 acts aexactly the same

I feel like there has to be a bug in HPTuners causing it. The save file has different cell hit counts as well. So it seems when I save the file its maybe using different perameters for each cell...

I exported the log to a csv and focused on cell at 3200RPM and 55kPa. That cell claimed to have 26hits and its measurement in the original log was -3.2 and in the saved file was -4.8. I opened the...

mmm, I didnt compare cell hits for actualy log vs saved log but will go out and run another log shortly and will look at that. I actually am using the other ST Fuel Trim graph for tuning and its only...

Why are STFT and maybe other stuff different from when you actully log to after saving. For example both images below are the exact same log run.

This is what the log ended with for STFT
140240...

To help anyone in the future and to close this out. Tonight I decided to buy the tune credits and merged pretty well all of the settins under the Engine, Engine Diag, and System sections into the...

Could this be a bug or something up with the OS version on my PCM? Its currently 12208322 and I found a few threads like the this where putting a newer OS on fixed the issue....

Here is the tune file and a log showing Fan 1 coming on right after start up with no pressure on the sensor and then at about 20 seconds in I put about 105psi shop air to the pressure sensor and the...

Hey guys. I'm working on adding Vintage air to my 83 C10 that has a 2001 LQ4 with a P01 in it. I added the 3 wires for the pressure switch based on the following diagram with the only exception being...

Hey guys, Getting ready to purchase a Vintage Air system for my 83 C10 with a 6.0L out of a 2001 Silverado and trying to figure out the best way to connect it into the PCM to control fans and bump...

I'm pretty sure its the cable. I cut back the channels I was logging and histograms and still had a couple lock ups. The other day I was messing with truck wiring and just set the ODB2 port connected...

Anyone find a solution. Im having this same issue. Tried diff cables and diff laptops.

I read some older posts and they were talking about logging too many channels and maybe too many histograms....

Been busy so havent had a ton of time to work on tuning and I also was having issues with the trans getting to 250degree F so I added a standalone cooler which now keeps the trans temps below 160F. I...

Thanks for all the info and help and your correct I was using the wrong terminology for the STFT being rich. I'll get LTFTs disabled and plan to do some work on tuning it this afternoon. I assume...

I have MAF disabled but a question before I go and modify VE in the wrong direction. The STFT show rich just like the narrowband O2s show but the AFR Err table and Wideband show rich. Images below...

Thanks for the help. I'll go work on VE and see how that goes.



I assume by use trims for part throttle tuning I should apply the changes that the ST Fuel Trims graph have to the VE table?

Thats correct. I have the fuel rail that came on the TBSS manifold that does not have the vacuum referenced pressure regulator. I am running a corvette style regulator and the injector data is setup...

Hey Guys, Im brand new to tuning and but have been reading around a lot and watching lots of how to videos to try and learn before posting this. I just rebuilt an 2001 LQ4 with the following mods:...