I drive a 90 Crx hf, I just swapped a d16a6 into it and replaced the ecu with a pm6, and used the si wiring harness. Now when I try to start it, it cranks, but no spark, it sparks when you turn the key to run, but nothing when I crank it. I checked the Blk/Ylw wire and it has 12 volts, also I know for sure that the dizzy and components are good, they were working when I ran the motor with the hf ecu.

When I got the engine, the Si harness was a little choppy,but I made sure that all the plugs were there. I am stumped as to what else to check. Is there anyway to ohm out the wires coming from the ignitor to make sure my wires are good. I ohmed out the blue wire for the tach, and that ohms out fine. Also, is there any way to tell what harness I have, anyone got a pic? I want to make sure that the guy I bought it from gave me the right one. I am stuck, any help is greatly appreciated guys.

 

ttt

 

your problem is that you need to use the HF engine harness - the Si harness will not work on the HF - at the engine harness to chassis harness connector at the firewall on the driver's side, the wires are all (except for one) in different locations on each side of the connector - surprised you don't also have code 20

 

Thats cool, I just figured that since I am using the Si motor, I would need to use the Si Harness. Thanks

 

same thing with my DOHC ZC swap, just change over the engine harness and it should start right up

 

ok so if the wires are so different on the HF harness why do all the colors match up to the correct locations on the ECU from the drivers side plug? The only thing that is differnet is that the HF has EGR from what I understand

I'm using a 90 HF harness on my 90 Si and I'm getting the same code with my B16 but everyone I know says it shoudl work with no problems

reference to this post I made
https://honda-tech.com/zerothread?id=818359