Messages on CAN Bus

Hello,

I'm working on a project thats measuring engine performance and fuel economy. Since the 2005 Ford we're using has 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

Would this be the 16 pin DLC you are referring to? The only streaming information you will find there is what is being shared by the various modules..... unless you request more information using commands from a scan tool...

FWIW, since you are looking at engine performance parameters, I might suggest something like the AutoEnginuity program - it appears to be favoured by many DIYers and will access PCM PID data for you..... This data includes parameters such as mass fuel desired, ignition timing, mass air flow, short and long term fuel trims (correction), engine load, fuel pressure and perhaps temperature (on gasoline engines), injector pulse width and the list goes on. These parameters can be monitored while the unit is being operated and (IIRC) can even be recorded with this software....

HTH.