Another OBDII tool
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Chip and Logging
I have the Davis Carchip E/X which is great for logging and charting feedback.
What I'd really like to have is realtime feedback from OBD-II to a laptop or Palm device -- I recall some freeware out there, but can't remember/find it. The trick is getting a compatible cable... RH77 |
Red -
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ElmScan PWM Scan Tool https://www.scantool.net/products/index.php?cPath=8_1 It appears that it is OBDII -> Scan Tool -> Serial Port -> PC. Sooooo, for $50, you could build-up a custom interface/program. For $10 more you could get the USB version. And it comes with open source!!!!!!!!!!! : ScanTool.net 1.13 https://www.scantool.net/?mode=displa...y=ScanTool.net Quote:
CarloSW2 |
I have the ISO version for the Heep, coupled with a software like Digimoto its a fairly powerful real time scanner.
You can also get the spec sheets for the IC that the controller uses and write your own software to interface with your car. Quote:
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cfg83, Could you explain to me what you see this has compared to the Scangauge? I looked at both but don't have an understanding of the wording being used.
Specifically the following: * Short Term Fuel Trim <---- Not in SG!!! * Long Term Fuel Trim <---- Not in SG!!! Thanks! |
Fourthbean -
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Elmscan........................./ SG? / ScanGauge Acronym (Degrees F and Mile units) * Engine RPM..................../ Yes / RPM * Calculated Load Value........./ Yes / LOD * Coolant Temperature.........../ Yes / FWT * Fuel System Status............/ ??? / --- * Vehicle Speed................./ Yes / MPH * Short Term Fuel Trim........../ No. / --- * Long Term Fuel Trim.........../ No. / --- * Intake Manifold Pressure....../ Yes / MAP * Timing Advance................/ Yes / IGN * Intake Air Temperature......../ Yes / FIA * Air Flow Rate................./ No. / --- * Absolute Throttle Position..../ Yes / TPS * Oxygen sensor voltages associatedshort term fuel trims./ No. / --- * Fuel System status............/ No. / --- * Fuel Pressure................./ Y/N / Not supported in all cars * Many others... Upcoming Features: * Data graphing and logging...../ No. / --- * Freeze Frame data............./ No. / --- * Continuous and Non-Continuous Oxygen Sensor test results....../ No. / --- Here is what I think is going on. The SG is displaying the set of variables that are defined by the OBDII specification to be *uniform* across automobile computer platforms. There are other inputs available, like short/long term fuel trim, but they are up to the manufacturer to specify, so they are not offered by the SG. In a future version of the SG software, you will be able to program for these inputs and store the data to a flash drive for post-driving analysis. Also, in future SG versions, I think there will be make/model specific firmware updates. If you go to the ElmScan site, there is FREE software and the source for you to download : ScanTool.net 1.13 https://www.scantool.net/?mode=displa...y=ScanTool.net I haven't spent time staring at the source, but that is where the goodies are, so I suggest you take a look. From my POV, this is fantastic, because I can create my own multi-input gauge => ANSWER: CONTROL!!!! Are you a programmer? Very skewbe-ish of them I do declare, :) . CarloSW2 |
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Good luck! |
And another...
https://www.powertraincontrolsolution...d200_alone.jpg https://www.powertraincontrolsolutions.com/ To bad their products (screen, TCU, fuel enhancement system) are all geared at the quarter milers instead of the hypermilers. I guess it's our fault for having shallow pockets. I'd love to have control of my slushbox - 5th would happen much much sooner. |
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cfg83, thanks for the detailed post. I am not a programmer, however I wouldn't back away from writing some stuff. I have a few friends up at work that could help me out if it was anything with Perl, php, etc. |
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