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Old 04-21-2005, 12:43 PM   #11
OldSuperSport
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Join Date: Apr 2005
Location: Akron, Ohio
Posts: 13
Thanks for the info. I suspect you're right. I could not detect any data using WinALDL. I'll have to try the TuneCat or other freewares out there and build the interface using the MAX232 chip, which is a lot more complex, but its all in the electronics junkbox, I think I even have the chip.

I still dont know what transmission I have, or the engine "vin letter" , what does vin K vin J vin P refer to? Its a towing pkg truck with dual radiators, 411 rear, so its a 4L60E or 4L80E I think. I need these to detemine the ECM protocol set.

Being able to see the online data will be really cool. I might even try to interface it to my palm smartphone, like I've seen on the web. The 8khz data could be used to modulate an infrared LED in the cab and use the palm infrared port to transport the serial data in. Maybe its alreay been done.

Thanks again
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