[Mk2] [Turbo] Power steering

[jon]

There's also a signal from the main ECU to the power steering ECU, named PSCT, that's used by the main ECU to disable power steering during starting.

Try disconnecting it, the power steering pump should then run when the ignition is turned on.

[poj20]

Cheers ,trying anything at moment

[poj20]

Hi all , ecu I’m drunk has been changed so problem most likely in ecu in boot.
Now I have the numbers of mine and wondered is there anyone know where I can buy one the same or even borrow one just to rule out a problem ? Willing to pay for the loan of one . Getting desperate now lol thanks in anticipation , mick

[Pauln]

Probably a good idea to post the actual number of your ECU as I think there are variants within the rev 2 range.

Paul

[poj20]

Here’s the numbers 89661-17380 3sgte
175000-4971 12v

26p 16p 22p
Hope this helps
Thanks paul

[markstevieandmads]

Thats the main ecu

You want the ps ecu

[poj20]

Apparently that’s been changed , so he reckons it’s the main one ?

[jon]

As I mentioned before, if PSCT is disconnected the main ECU had no control over the PS. Did you try that? If it didn't work changing the main ECU is just wasting money.

[poj20]

Hi , I’m now looking for someone in or around midlands area that can fix this for me , after 3 months with one garage , he’s now given up and I’ve my car back still not repaired , any suggestions welcome , regards mick

[poj20]

Solenoid has been changed as was relay and Motor to the rack . Motor kicks in when on full lock either left or right , as soon as you start straightening up, motor stops . P/s light comes on a few seconds after ignition switched on . Nothing else to change is there or anyone any ideas ?? Regards mick

[mr2magic]

Have you pulled the error codes? Short Tc and E in the diagnostics port and switch on ignition (don't start). Check the P/S light in the dash...is it blinking approx. twice a second continously oder is it flashing some kind of code as described here:

[poj20]

Hi , I’ve not tried and my mechanic s given up . P/s light just stays on , no blinking at all . Took it somewhere yesterday and he just hit solenoid with a hammer ! Said they stick but it’s been exchanged . I’ll pass this onto mechanic but he said the last diagram supplied by someone didn’t match ecu wiring so am at a loss at moment . Hard to find someone local who knows about mr2 thanks for help mick

[mr2magic]

No need for a mechanic to read the fault codes. A paperclip can be used as a conductor to short Tc and E in the diagnostic port. We needn't be concerned with wiring yet....at least not until we can rule out everything else

[poj20]

I sent that to my garage and he says he’s got that one so I assume he’s done the tests , so thanks anyway

[poj20]

All sorted now

[tiff_lee]

So what was it? just for closure

[poj20]

A sensor in the steering wheel . Also they said a wire was missing , but it’s done ok since 1993 without it !