I hope some one can help me out. I have a '98 200SX SE-R. I am swapping in a SR20VE, but I need some help. For one I have an upgraded '93 SE-R JWT ECU for a SR20VE. I was supposed to have swapped this motor in my Sentra, but it was stolen. I got the '98 pretty much gutted out, missing the harness and engine. I currently have the complete harness for a '93 SE-R and am using it in the '98. So the SR20VE is in the '98 and I am laying out the harness and notice a couple of things. There is a white female plug (that is close to the blue plug that goes to the ECU) that is supposed to plug into male plug underneath the dash, but in the '98 it is also a female plug. Does anyone have an idea how to wire the two of them together? Any diagrams? Also, in the engine bay there are two relays with plugs underneath the battery tray, what plugs into that? What is it for? Finally, how will I get the speedo/tach to work on my '98 with a '93 harness?

Thanks,
KEN
(GUAM RICER)

Honestly I would go buy a 98 harness.

i dont think you'll find anyone willing to give you that kind of help. you should go buy a 93 ans 98 fsm and read all the wiring diagrams to rewire and make it wor. or just go buy a 98 wire harness. aprox $400 for the harness about $250 for 2 fsms + hours of works you decide which is better for you.