I visually inspected the connectors and the wiring and they all look good. I've got two eps ecu's that I've tried.
Using my toucan I've been turning the car on and off as I'm driving to get the steering assist to work. Coolant temp was showing 80'c for the assist to work. I may try and make something to cover the eps ecu up, as its currently bolted to the chassis on spacers. Like I said in an earlier post the foam air filter used to sit over it before I deleted the maf sensor.
i have a fairly stock rx8 and have got power steering issues a week after switching my ecu, throttle body, radiator and fans. ive soldered all the connection plugs between eps motor and the control module. there is continuity where it should be. ive followed the troubleshooting guide to the point it says to replace the module and or rack (https://www.rotaryheads.com/PDF/RX8/8Steering.PDF).
in mazda iDS datalogger i get perfect readings from the torque sensor like you did, the eps motor jumps from 0.00A to -1.00A and the torque sensor correction is stuck on 1.75Nm. i assume its the control module and have purchased one from overseas but thought id see if i could find anything else out in the meantime.
Rx8 electric power steering problem
in G4+
Posted
Hey Benginetuner
did you ever work out what was causing the issue?
i have a fairly stock rx8 and have got power steering issues a week after switching my ecu, throttle body, radiator and fans. ive soldered all the connection plugs between eps motor and the control module. there is continuity where it should be. ive followed the troubleshooting guide to the point it says to replace the module and or rack (https://www.rotaryheads.com/PDF/RX8/8Steering.PDF).
in mazda iDS datalogger i get perfect readings from the torque sensor like you did, the eps motor jumps from 0.00A to -1.00A and the torque sensor correction is stuck on 1.75Nm. i assume its the control module and have purchased one from overseas but thought id see if i could find anything else out in the meantime.
cheers!