ok i got a b20z (obd2) with a b18 head (obd1) on it the swap went in easy but the wiring it whats messing with me the bottom end it obd2 so it has the ckf but i did the bypass on that and then theres a knock sensor but the dx wriering didnt have one so i didnt plug it in. i did the rewire on the dizzy to obd2a for the stock harness and i also did the 2 wire ivac ok thats all the things for the swap to run right ???? but i have a p75 ecu but it runs like **** when you give it gas it cuts out and then revs up but if i put my stock po6 obd1 in it runs the same way but if i put the stock p2p ecu in it runs better but you still cant really drive it has anyone had this problem???? and another thing when you do the swap theres two plugs not pluged in one i think is the ckf and the other one i dont know where it goes. need help guys asap ?????

 

bump need help

 

pictures of the plugs would help.

 

so all of your ecu's are obd2a? If I was you I would get an obd2a to obd1 jumper harnes and use an obd1 p75