I just installed a version 5 UTEC on my WRX 04 and the CEL is on. I read somewhere that if you use a vr5 utec on a wrx 04 you have to bypass the harness to evade the CEL. Please help I can't find that treat.

I figured out after reading and comparing the computer diagrams I find out that WRX02 is missing the port 2 on the conector B136(B137 on the 04). So I bypass the cable from the oem hardness B137 port 2 and created a pin on the UTEC hardness wich didn't had a pin and voalaaa CEL light is off.