Hey guys so I have a question about wiring harnesses. I have an ef HX with a obd1 gsr head, b20 block, and obd0 b16 tranny. I have a rywire vtec swap harness and, I believe, a DA integra harness that has been modified for obd1 injectors.

I have mostly wired the engine, but there is no spark and no injector pulse.

I have checked the ecu side of things. chipped p28. I thought I needed a resistor box, but there wasn't a plug on the harness that fit the obd0 resistor box I grabbed. I'll show a couple pics below of the resistor box and the harness. I'm confused If I am just supposed to plug these two plugs in, or what I was missing. it turns over. and the fuel pump is goin.

If someone has some pics of a stock DA harness that may help. if you've done the swap, some help would be nice.
I may end up getting a rywire harness if I don't figure this out.

 

 

A few things of concern here...

Normally, when swapping in a different engine you use your old engine harness and modify it to suit the swap. It sounds like you have an OBD0 DA harness with OBD1 injector plugs, not ideal. Keep in mind that DA integras were made in 90-91 (obd0) and 92-93 (obd1), be sure which one you have.

Also, OBD1 injectors do not use a resistor box. If you are in fact using an OBD0 harness, there should be a plug for the DA resistor box. If you're using OBD1 injectors then the resistor box needs to be "deleted", do your research to find out how to do this.

Also, your "chipped P28" needs to be confirmed one way or another. Is it chipped? What engine is it programmed for? Is the ECU a known working unit?

The no-spark issue is a mystery until you provide more information.

 

I ended up getting a rywire harness.

 

I think it was an obd1 that had been partially converted to obd0