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 Post subject: Faster CAN logging
PostPosted: Fri Mar 26, 2010 4:18 pm 
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Location: Canada eh!
Has anyone else seen this thread?
http://forums.openecu.org/viewtopic.php?p=22951#p22951


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 Post subject: Re: Faster CAN logging
PostPosted: Fri Mar 26, 2010 10:25 pm 
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Yep. :-) I got it to work on my ecu. 40 samples per second up to max 16 parameters! More can be put in but need to implement that grouping Colby was talking about.


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 Post subject: Re: Faster CAN logging
PostPosted: Fri Mar 26, 2010 10:55 pm 
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Yeah. That looks promising.


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 Post subject: Re: Faster CAN logging
PostPosted: Sat Mar 27, 2010 2:17 pm 
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MFB wrote:
Yep. :-) I got it to work on my ecu. 40 samples per second up to max 16 parameters! More can be put in but need to implement that grouping Colby was talking about.

Can you share a sample log of such?


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 Post subject: Re: Faster CAN logging
PostPosted: Sun Mar 28, 2010 4:09 am 
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dschultz wrote:
MFB wrote:
Yep. :-) I got it to work on my ecu. 40 samples per second up to max 16 parameters! More can be put in but need to implement that grouping Colby was talking about.

Can you share a sample log of such?


2nd gear log using rom raider vs 2nd gear log with OP CAN. Please let me know what the difference is aside from more samples per second. Thanks!


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 Post subject: Re: Faster CAN logging
PostPosted: Sun Mar 28, 2010 12:12 pm 
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Location: Canada eh!
MFB wrote:
2nd gear log using rom raider vs 2nd gear log with OP CAN. Please let me know what the difference is aside from more samples per second. Thanks!

It's 10X the size :wink:

In the OP2 log there was some FBKC in the WOT area that I didn't see in the RR log. But both logs show a dip in RPM near the end of your run.
For the RR log you can drop items like IAM (1-byte)** (multiplier) & Mass Airflow Sensor Voltage (V). I guess you don't have knock sum?

Can you start your logs at 2000 RPM and go to redline? If you included Vehicle Speed it would be neat to see it on the RR Dyno tab.
I'll try and get a new cars_def out for the Forester.
Attachment:
fxt-rr.png
Attachment:
fxt-op2.png


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 Post subject: Re: Faster CAN logging
PostPosted: Sun Mar 28, 2010 2:08 pm 
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Thanks! Yes I do not have knock sum. I log maf volts since I was asked too. :-) As for the dip in the rpm, that was when the dtc hit. Its either a P0108 or a P0244. I hope I can log using Can those dtc codes. I can no longer read using a regular obd what rpm it happened. For some reason the reader says its not stored in memory and only shows the error code.

I'll include vehicle speed next run and post it here. My forester is an my 09 XT EDM. Looking forward to that road dyno vehicle inclusion for my fozzie. :-)

So does it mean its better I stay with CAN logging instead?


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 Post subject: Re: Faster CAN logging
PostPosted: Sun Mar 28, 2010 2:21 pm 
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Location: Canada eh!
DTC P0108 MANIFOLD ABSOLUTE PRESSURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUT
DTC P0244 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” RANGE/PERFORMANCE

Are you hitting the MAP sensor limit?
topic5854.html

I'd stick with CAN and buy a larger HD to store all those soon to be huge logs on :wink:


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 Post subject: Re: Faster CAN logging
PostPosted: Sun Mar 28, 2010 2:27 pm 
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I dont know if I am. I'll read on that and get back to you. As for the logging, micro sd is 16 gig and more than enough for my palm treo (yes, it should be in a museum) and my OP2.

Anything else you see from the logs? :-)


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 Post subject: Re: Faster CAN logging
PostPosted: Sun Mar 28, 2010 2:36 pm 
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Location: Canada eh!
Maybe bump the MAP Sensor High Limit up a bit...or a combination of the Limit and the high input delay?
Until the DTC stops coming in, the logs are going to be limited in usefulness.


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 Post subject: Re: Faster CAN logging
PostPosted: Sun Mar 28, 2010 4:25 pm 
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Thanks for the tip. Im also waiting for my innovate lc-1 to come in. Once that gets connected, should be interesting. :-)


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