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ok guys here i go

i have a 93 RS soch and i swaped in a bpt 1.8 doch and i also have the GTX ECU BP26

do i have to change anything to my wiring Harness because my stock ecu and teh GTX ecu is exactly the same thing
please help me thanks
if i do have to change my wiring (what harness to i need etc)

yes you have to use the BPT ecu. you will need the wiring harness for a GTX.

i already have the GTX ECU and its plug on my RS SOCH 93 wiring Harness i dont get any check engine error i was just wondering if i had to change anything becuase its seems to work and the car runs great

i havent tested it yet on the streets yet because my car is sleeping this winter

any help please