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has anyone made their own ecu usb cable? help

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Old 11-08-2009, 04:02 AM
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has anyone made their own ecu usb cable? help

i have a chipped ecu
here's the problem i have there isn't a local honda tuner for atleast 3 1/2 hours. i have a local tuner who mostly works on dsms or mits. so the cn2 port i was doing some research and i don't want to invest paying 40bucks including shipping for a usb cable. i bought the four pin connector i was just wondering if anyone knew which wire goes to which pin. the color code of wiring goes black, green, white, red and a shield around my usb cable.
according to some sites it seems like it's suppose to be black green xxx and red
and another site a different way. so help would be appreciated. based on the cable i have. so which color should go to which pin on the cn2 port.
and one more question.
can a computer hook up to the ecu through cn2 port and read the basemap or does the ecu need some other type of connection ex: like plugged into the car or something plugged into the ecu?
my local tuner says it's a hardburned chip and there's noway to change the basemap. according to xenocron the basemaps are changeable through the cn2 plug. so i'm trying to first do all this homework and show him so he knows what to adjust. and i can't drive 3 1/2hrs to get this done.
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