hey guys i was just wondering if anyone had any thoughts to help my answer my problem. the thing is i bought a 13b turbo II engine from fnfmotors.com to put into my fc rx7 but as i got it bolted in n i started wiring up the harness to the motor stuff wasnt matching up. i was wondering if i needed a new wiring harness or something. does anyone have any ideas?

 

maybe you order the wrong series motor,you have S4 RX7(86 to 88) and S5 RX7(89 to 91) and they use diferent ecu and emissions harnesses,what year its your car and waht year its the motor that you ordered?