ls ef
New Member
So I just completed my ls/vtec swap in my crx. I have a obd0 to obd1 jumper harness along with a chipped and socketed p28. The ecu works fine due to I just pulled it from a car a few minutes before putting in my crx. When the jumper harness and obd1 ecu is in it will not start. It turns over, sparks, and sends fuel. Now when I put my pr4 ecu in, direct plug in no jumper icluded it starts fine and runs fine. If anyone has any advice please let me know. Thanks