Hello all, I was hoping to get some info from the maters. I hope you guys can help me!

Ok, I am trying to use the EPS system in a project car of mine. I have it all mounted, ready for the wiring. Since I am not using the f20 motor or tranny, I need some help with deciding what to use for the EPS computer inputs. Based on the factory wiring diagram I have, the following are all inputs:
1)B+ constant
2)B+ IG1
3)speedometer signal from gauge assembly
4)tach signal from ECM
5)"EPS load detect" from ECM, speed signal maybe?
6)3 wires for torque sensor

From what I have read, the system only uses the torque signal and the speed signal to operate the EPS. With that said, why would they have 2 inputs for the speed, and a tach signal? Which of these am I going to have to simulate?

My question is that since I am not using the ECM, speed, and tach signals, is it possible to "fool" the system into working properly? Is there a way to wire it all up so that I can get the powersteering to work without those signals? If I really do need a speed signal, would a 12V with a rheostat to change the voltage simulate it for a specific speed, then just adjust it as I need?

Any other ideas to make this thing work would be greatly appreciated. There has to be a way to get this wiring worked out so that I can use it.

Thanks guys

Ryan

 

I just found this with a search.

Did you ever make any progress on this project?

It seems to me you should be able to route the speedometer and tach signals without much trouble. These are both pulsetrains, so a rheostat wouldn't work anyway. The "EPS load detect" signal would have to be simulated, however, so you'd need some specs on what kind of signal is expected there.