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elcarpuz
19th August, 2013, 06:10 PM
Hi friends,

Friday i do chiptuning on FH volvo, truck start and drive 80km, stop, and when need to retart, difficult need many times, and after impossible to start

eprom AT28HC256E, today i control and checksum is wrong, is it possible defekt eprom change itself checksum?

is it the HOT AIR problem?

Any idea?

elcarpuz
19th August, 2013, 07:33 PM
can i replace at28hc256 (atmel) by x28hc256 (xicor) maybe defekt eprom

jolidj
19th August, 2013, 07:57 PM
you recalculate the chk and start the car??? yes you can use diffrent memory

elcarpuz
19th August, 2013, 08:54 PM
yes i recalculate, restart ok, and after 200m, 10km or more

same problem

ducatisti
22nd August, 2013, 09:18 PM
Ducati stop after exactly 80 miles if wrong checksum but will start again and drive another 80 miles