Power steering

[SAS92Z]

any advice on replacing speed sensor or P/S control module for intermittent loss of P/S.

[itsa300zx]

The speed sensor and control units are rare to fail. Most common issues for hard steering is the gauge cluster. Here is a good read to diagnose the PS system

http://www.twinturbo.net/net/viewmsg.as ... id=1164091

[Daspyda]

My control unit kept overheating. Replaced and no problem for three years...

[SAS92Z]

Thank you. Is that located under floorboard passenger side? How did you know it was overheating?

[Daspyda]

The shop did it. Not sure of location. I know the ECU is under floorboard. Find one on eBay, match pic with what's with ECU.

The shop opened it up and saw burn marks.

A good thing to have is a shop manual.

[Daspyda]

I pulled out my repair records and found the work on the power steering. The shop opened it up and found "circuit board dry jointed badly". Repaired board but "90% improvement but untouchably hot".

Replaced steering control ECM with used unit. Works since Sept 3, 2019. Part was $49

Unit is under floorboard on passenger side on N/A cars.

[SAS92Z]

Thanks for that information. Replacing the PS control module was next on my list to try solving problem.