Quote:
Originally Posted by Ecky
Neat project! Following with interest.
The Civic Hybrid EPS is one of my least favorite EPS systems, but I imagine it to be the easiest swap. Insight and Fit EPS have much smaller dead zones and lighter steering, though I suppose that could have as much to do with the weight of the vehicles in question as anything.
I'm about to do a K swap in my Insight and I'll report back on how my EPS functions. From what I've gathered from others, K series tach signaling is different but EPS still works after the swap it's probably only used for some of the logic. EPS in my car works whenever the key is in the 2 position even if the engine is off.
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Great info, thank you. I think that the RPM signal might only be used for error checking somehow. I say that because there are EPS trouble codes that are set based on the RPM/speed comparison. For example, "The car’s RPM is less than 500, but the car's speed is 6 MPH". Why it would care I have no idea, maybe to help verify that the VSS signal is correct.
As for the K swap you are planning on doing, that's awesome! I don't expect that you will have a problem with the EPS. The Civic EP3 comes with EPS, and people have also done EPS conversions on their RSX with no problems.
Also, I would imagine that the EPS module makes a big difference in how the steering feels and responds. I have the Civic Hybrid EPS module, but I have heard that the Civic SI EP3 module might be a better choice because it is programmed for a heavier, more sporty steering feel, where the Hybrid EPS module is programmed for a lighter, more relaxed steering feel. I have no idea if that is true, but it's what people have said.
As for the dead on center feel, I was kind of concerned that my rack would feel loose and unresponsive because it has a torque sensor on the steering input, so the shaft can be twisted a little bit in both directions without moving the tie rods. However, I can feel no additional play or deadened response at all, which I am very happy about. Actually, this rack feels better with no assist than the hydraulic rack felt when it has no oil in it or when the belt isn't on the pump.