PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Free Data Loggers

Thread Tools
 
Search this Thread
 
Old May 17, 2025 | 10:13 PM
  #1  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default Free Data Loggers

I have been trying to use OBDXplorer but it keeps crashing few seconds into the run. What other options are you guys using that doesn't charge to use it? Any open source stuff that works?

Last edited by BReal408; May 19, 2025 at 02:18 AM. Reason: spelling
Reply
Old May 17, 2025 | 10:36 PM
  #2  
NSFW's Avatar
TECH Fanatic
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2018
Posts: 1,059
Likes: 198
Default

PCM Hammer - the latest release is available here: https://github.com/LegacyNsfw/PcmHacks/releases

There's a flashing app and a logging app. Pretty basic, but they work.

Coincidentally I'm in the middle of rewriting the UI so that both flashing and logging will be in the same app, and it'll be much more touchscreen-friendly. It's not quite ready for public consumption yet, but it's getting close.
Reply
Old May 18, 2025 | 10:47 PM
  #3  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default

I'm not having much luck with the logger. doesn't want to connect. i tried unpluging and reconnecting the OBDXproGT and still nothing.
Reply
Old May 19, 2025 | 12:23 AM
  #4  
NSFW's Avatar
TECH Fanatic
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2018
Posts: 1,059
Likes: 198
Default

The flashing app has a little bit better UI for troubleshooting...
* kill the logging app
* open PCM Hammer
* click the Select Device button, pick "Serial device", pick the correct COM port, pick "OBDX Pro" from the device-type list, click OK to close the settings window
* click the "get properties" button
...what happens?
Reply
Old May 19, 2025 | 02:25 AM
  #5  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default

I will have to try that tomorrow and will let you know. OBDXplorer did finally hang in there long enough to get me some data but just idle and no load rev in the driveway will try and do some pulls tomorrow. I had to cut down on the number of PIDS I was recording to get it to stay stable. but this is what i got and the "tune" if you can call it that. If anyone could take a look and tell me what you see as far as mistakes or obvious problems it would be greatly appreciated.
Attached Files
File Type: bin
truckmay16.bin (1.00 MB, 6 views)
File Type: csv
may1804.csv (74.7 KB, 8 views)
File Type: csv
may1803.csv (22.6 KB, 7 views)
File Type: csv
may1802.csv (10.7 KB, 8 views)
File Type: csv
may1801.csv (46.8 KB, 10 views)
Reply
Old May 21, 2025 | 10:39 PM
  #6  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default

[QUOTE=NSFW;20610192]The flashing app has a little bit better UI for troubleshooting...
* kill the logging app
* open PCM Hammer
* click the Select Device button, pick "Serial device", pick the correct COM port, pick "OBDX Pro" from the device-type list, click OK to close the settings window
* click the "get properties" button
...what happens?[/QUOTE/]
gives me all the info seems to be reading it fine
Reply
Old May 21, 2025 | 10:47 PM
  #7  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default

logger just keeps going thru the list of pids and calling them all incompatiable
Reply
Old May 22, 2025 | 12:30 AM
  #8  
NSFW's Avatar
TECH Fanatic
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2018
Posts: 1,059
Likes: 198
Default

What year and model is your car?

There aren't a lot of people using the logger yet, so 99% of the testing so far has just been me with my 2002 Corvette. I thought that most of the PIDs were standard, but maybe not. There are some that aren't supported by my car either but so far it hasn't been a big deal. Like, there are two parameters for accelerator pedal position and one is supported and the other isn't, so I just use the one that works.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old May 22, 2025 | 02:08 AM
  #9  
NSFW's Avatar
TECH Fanatic
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2018
Posts: 1,059
Likes: 198
Default

Does it work if you select these parameters? Hopefully they're supported by all PCMs / operating systems... but I have only tested P01 and P59 PCMs with Corvette operating systems.

Reply
Old May 23, 2025 | 01:06 AM
  #10  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default

Originally Posted by NSFW
Does it work if you select these parameters? Hopefully they're supported by all PCMs / operating systems... but I have only tested P01 and P59 PCMs with Corvette operating systems.

I willhave to try it and let you know. I am dealing with a 2003 suburban 5.3 that was automatic but now drives a truck 3 speed(sm465) if that makes a difference or not I doubt it but just wanted to let you know what Im working with.
Reply
Old May 23, 2025 | 11:31 PM
  #11  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default

So after unplugging the OBXProGT from truck and laptop and restarting laptop I got it talking and was able to pick some parameters and could see the info from them being displayed but it would never let me start recording. Picked the file to send it to and all but the start button never turned so I could click it.
Reply
Old May 24, 2025 | 12:41 AM
  #12  
NSFW's Avatar
TECH Fanatic
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2018
Posts: 1,059
Likes: 198
Default

Coincidentally someone reported the same bug a couple days ago. I don't know the root cause, but there is a workaround.

Get it displaying live data, use the Save button to save the log profile, then exit the app and restart it. The start button should be enabled.

Hopefully I'll have some time to figure out the problem and fix it this weekend, but I can't promise.
Reply
Old Jun 3, 2025 | 07:57 PM
  #13  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default

Ever get a chance to sort the bugs out?
Reply
Old Jun 3, 2025 | 10:58 PM
  #14  
NSFW's Avatar
TECH Fanatic
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2018
Posts: 1,059
Likes: 198
Default

I think I've got it fixed, but we're at an awkward time to do a release right now... Version 2.0 is in beta testing and it has a ton of unrelated changes - mostly related to supporting more PCMs from the same era. And then Version 3.0 is also almost ready, with no new features but a completely redone user interface. I put the fix in 3.0 because that's what I've been working on, and I need to copy it into 2.0 so it'll be in the next beta release.
Reply
Old Jun 5, 2025 | 09:16 PM
  #15  
BReal408's Avatar
Thread Starter
On The Tree
 
Joined: May 2023
Posts: 116
Likes: 4
Default

look forward to trying it out i am having a hell of a time with OBDXplorer still
Reply




All times are GMT -5. The time now is 11:14 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE