ecu

Hello fellas so im trying to get into my ecu via ecuflash but i keep getting a "sequence 2 then a interface close" Does this mean my ecu is locked? The person i bought it from said its been tuned before or has a tuned ecu. And also is this normal because my ecu looks pretty crusty! Thanks...

Hey guys im new here but i wanted to find out if i could direct swop a 6a12 ecu with the 6a13 ecu Ive tried checking pin outs and they look identical but i wasnt sure how it would affect the perfomance since one is tuned for 500cc more than the other as well as injectors I was led to believe...