hello everyone, I am looking for ECM test harness. I need it for use digital volt/Ohmmeter. My car is 93 Prelude si H23A1. I noticed engine check light on. I found the trouble codes are 7 and 23. Throttle position sensor and knock sensor. Do you know any about that? So I need ECM test harness . Thank you
Robert F.

 

If its a 4th gen its behind the radio on the bottom, its a blue connecter. You place a peice of metal to connect the two then the check engine light will blink the code out.

 

Hi, Yes, I did checked code # out. I mean I ask question about special tool is EMC test harness. That is connect between ECM box and wires harness. It is for digital to use. Is that clear to you ? thank you.

 

u probably need to buy that from honda, imo its pointless, just stick ur meter probe into the connector itself

 

It's a special harness that Honda technicians have (you must have a Helms manual). It makes it easier to test electrical loads, etc. but it isn't worth however much they would want for it (that is if they would sell one). You can test your wires without the harness and save some $.