Decoding CAN messages

Hello,

I'm working on a project thats measuring engine performance and fuel economy. Since most new cars (like the 2005 Ford we're using) have a CAN network, we thought we could get some engine messages off the CAN connector. We bought a CAN to USB adaptor and started recording messages.

(Time),Channel id,Flags,DLC,Data0,Data1,Data2,Data3,Data4,Data5,Data6,Data7,(Counter)

0.1,1,1024,2,7,32,0,232,131,64,28,194,0,1 0.1,1,1104,2,7,31,214,2,156,16,176,32,0,2 0.1,1,768,2,5,5,126,154,6,0,0,0,0,3 0.1,1,368,2,8,16,144,100,101,18,198,14,56,4 0.1,1,786,2,8,124,35,128,127,255,35,124,35,5 0.1,1,805,2,2,0,129,0,0,0,0,0,0,6 0.1,1,818,2,8,128,240,129,15,255,255,0,202,7 0.1,1,70,2,6,0,0,0,0,0,0,0,0,8 0.1,1,1200,2,8,40,101,40,105,40,103,40,99,9 0.11,1,1024,2,7,32,0,232,131,64,28,194,0,10 0.11,1,368,2,8,16,145,100,101,18,199,14,56,11

These messages appear common. The software from kvaser, canusb.com, WGSoft and any other program I've found simply display lines of data like these (either in decimal like this or hex)

The messages I found for ODB-II are mostly 4 bytes and don't match, and we've looked at SAE standards and these messages do not match the J1939 documents we found (although they are 8 bytes).

Does anybody know how to convert these numbers into words and real values with units?

Thanks, Kevin

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krutten
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