Quote:
Originally Posted by 03DSM-RSX
actually, it in fact DOES split. i have found that the MAP, ECT, and IAT sensors are affected by splicing the wire and splitting it to 2 ecus. I am currently finding ways to get a clean, fresh signal straight from the sensor instead of splicing it. I will certainly let you know when i find out.
I am running a dual ecu setup and currently working on a new R&D project for Hondata. I assume you already have Hondata Kpro on the RSX ecu? Once you have the electrical things able to turn on, you can check the KManager software and see what sensors are needed.
so at this point, your FIt ecu is controlling: multiplex, a/c...and what else?
RSX Kpro ecu should be controlling everything else, including OBD2. Although you can leave the "K-Line" from the Fit ecu tapped with the RSX's K-line to be able to diagnose both ecus. but when u go in for inspection sometime in the future, cut the K-Line from the Fit ecu. (K-line is the OBD2 comm line)
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I don't doubt there will be issues getting to work, I only meant a voltage "split" is a bad way to describe the problem. Sometimes things are only designed to communicate to one device and yeah it can make things interesting. I've got no direct car experience so I'm not gona hazzard a guess as to why without seeing any sensor specs and signal details. I definately wish you the best of luck though and let us know when you figure it out.
