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Old Jun 2, 2009 | 09:56 PM
  #46  
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Thanks, I'll test it out tonight
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Old Jun 2, 2009 | 09:59 PM
  #47  
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ok..

anyways - I was able to log TPS. But it only goes upto ~87%.

Whats the deal with that? Also how do I know if I am logging the real throttle position or the electronic controlled TPS?
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Old Jun 2, 2009 | 10:01 PM
  #48  
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All other loggers that I know of only go up to 87% too.
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Old Jun 3, 2009 | 12:11 AM
  #49  
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ok guys.

I just tried this on a Cobb "enabled" ROM, and it doesn't work.

Cobb have had a similar idea to get logging out - But different.

I am not sure what they are trying todo yet - but as a precautionary note - I wouldn't try this mod on a Cobb ROM

Yeah - Note to Cobb - check your code there guys it's a bit dodgy - I am surprised its working...

Last edited by tephra; Jun 3, 2009 at 12:15 AM.
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Old Jun 3, 2009 | 01:53 AM
  #50  
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I just tested it out on the 52360018, all I got was a bunch of jibberish for numbers.

*Edit, I guess I do have to edit the config.txt to my specific ROM. How do you know what each MUT address represents?
Attached Files
File Type: txt
test.txt (40.0 KB, 0 views)

Last edited by SiC; Jun 3, 2009 at 04:16 AM.
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Old Jun 3, 2009 | 04:32 AM
  #51  
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its because there isn't a config file for 52360018 yet...

you need to find the memory addresses you want to log.

using the MUT_TABLE is a good starting point as they are universal - ie MUT06 = timingadvance, so whatever memory address is at MUT06 then you can use that in the config.txt
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Old Jun 3, 2009 | 04:49 AM
  #52  
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Originally Posted by tephra
its because there isn't a config file for 52360018 yet...

you need to find the memory addresses you want to log.

using the MUT_TABLE is a good starting point as they are universal - ie MUT06 = timingadvance, so whatever memory address is at MUT06 then you can use that in the config.txt
Yeah, I understand that but I was wondering how do you know what each MUT represents? Such as MUT06 = Timingadvance, is there a chart that tells what each MUT is? I can find the address as long as I know what each MUT is.

*Edit* Nevermind, I found it

Thanks,
SiC

Last edited by SiC; Jun 3, 2009 at 05:03 AM.
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Old Jun 3, 2009 | 04:50 AM
  #53  
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Originally Posted by tephra
ok..

anyways - I was able to log TPS. But it only goes upto ~87%.

Whats the deal with that? Also how do I know if I am logging the real throttle position or the electronic controlled TPS?
Apparently that is normal, maybe 88% is absolute max that I've seen from any OBD2 logger I've tried.
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Old Jun 3, 2009 | 08:13 AM
  #54  
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Tephra, does injector pulse width seem a bit high to you? I'm peaking at 20 ms, and your graph seems to peak at about 17 ms. Is this correct? Thanks!
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Old Jun 3, 2009 | 10:47 AM
  #55  
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In to read about Tephrascan later . Thanks for the work and contributions to the community.
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Old Jun 3, 2009 | 12:55 PM
  #56  
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Originally Posted by LaXGSR
Tephra, does injector pulse width seem a bit high to you? I'm peaking at 20 ms, and your graph seems to peak at about 17 ms. Is this correct? Thanks!
Need to know what RPM it is 20 ms at
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Old Jun 3, 2009 | 01:01 PM
  #57  
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Originally Posted by tephra
ok guys.

I just tried this on a Cobb "enabled" ROM, and it doesn't work.

Cobb have had a similar idea to get logging out - But different.

I am not sure what they are trying todo yet - but as a precautionary note - I wouldn't try this mod on a Cobb ROM

Yeah - Note to Cobb - check your code there guys it's a bit dodgy - I am surprised its working...
This is soooooooo surprising to hear!

(do that in your head in a Homer Simpson voice)
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Old Jun 3, 2009 | 01:03 PM
  #58  
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Originally Posted by LaXGSR
Tephra, does injector pulse width seem a bit high to you? I'm peaking at 20 ms, and your graph seems to peak at about 17 ms. Is this correct? Thanks!
I've got logs of peaks higher than 20 (21.25 @ 4700rpm, 22.53 @ 3842rpm).
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Old Jun 3, 2009 | 01:11 PM
  #59  
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From: Hayward
Originally Posted by goofygrin
I've got logs of peaks higher than 20 (21.25 @ 4700rpm, 22.53 @ 3842rpm).
3842 is 72.13% IDC

4700 is 83.23% IDC

That does seem wrong.
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Old Jun 3, 2009 | 01:20 PM
  #60  
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Originally Posted by GST Motorsports
Need to know what RPM it is 20 ms at
I tend to see 20 ms between 4000-4500 rpm's in third gear (GSR stock). I posted my log last night if you're interested (see ThirdGearGSRStock.txt).

If I understand the formula correctly, Injector Duty Cycle = Injector Pulse Width * RPM / 1200. So I have around 75% IDC at 4500 rpm's with 91 octane, stock GSR. Does that seem right?
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