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Steering fault light

Posted: Mon Dec 21, 2015 7:50 pm
by Nickxk150
Hi all ,my name is Nick and was wondering if someone can help me,I have used the power steering set up on a classic car with the help of some friends.
When I start the car the steering goes to the left which I know this can be adjusted but the fault light is on so have I got an electrical problem also or does the light come on with the steering pulling one way or another.
Regards

Re: Steering fault light

Posted: Mon Dec 21, 2015 9:22 pm
by talkingcars
Hi and welcome to the forum

The pulling to the left doesn't register as a fault.
What are you using for a speed signal?

A guide to curing the pulling left - http://www.the-t-bar.com/21-david-aiket ... to-cure-it

James

Re: Steering fault light

Posted: Tue Dec 22, 2015 9:48 am
by Nickxk150
James many thanks for getting back to me, I've tapped and drilled the angle speed drive then added an extension that turn in sequence to the speedo ,my friend made a mini interface that reads the signal.
I don't how to post a picture but I will try to adjust the pulling and report back.
Nick

Re: Steering fault light

Posted: Tue Dec 22, 2015 10:55 pm
by talkingcars
Nick - I don't suppose you could share details of the interface. James

Re: Steering fault light

Posted: Wed Dec 23, 2015 4:23 pm
by Nickxk150
James what is it you need to know,I'm sure I can get the info for you ,I've adjusted the steering so it doesn't pull to the left on start up but the fault light is still on,can someone confirm that the fault light switch is earthed via the ecu.
Nick

Re: Steering fault light

Posted: Wed Dec 23, 2015 5:20 pm
by talkingcars
Wiring diagrams and workshop manuals can be found at http://www.the-t-bar.com/community/downloads

I am interested in fitting a MGF steering column to one of my other cars so how you've adapted it to work on you car would be great.

Re: Steering fault light

Posted: Thu Dec 24, 2015 10:27 am
by Nickxk150
Hi Rod shears is the engineer who has adapted the column you can get the article on line,very helpful guy
Nick

Re: Steering fault light

Posted: Sun Dec 27, 2015 10:15 am
by talkingcars
Ok, thanks, I'm yet to find it but I shall keep looking.

Re: Steering fault light

Posted: Fri Jan 15, 2016 9:13 pm
by Nickxk150
Hi again ,sorry I've not been on here for a while ,you can find the articles in the xkclub forum.
Would someone be able to tell me how to dismantle the steering column,I need to take the outer tube from the motor.
Nick

Re: Steering fault light

Posted: Mon Jan 18, 2016 7:26 pm
by Rob Bell
Re-setting the steering column potentiometers covered here: http://mgf.ultimatemg.com/group2/common ... /index.htm

James is right: EPAS faults are not logged via the engine management system - so is not available to the vast majority (all?) generic EOBD readers. Incorrect EPAS alignment data can however be obtained from Testbook (MG Rover's own diagnostic equipment). Currently I don't believe this is possible on the pscan.eu, but I know that Phil is working on it! :)

Re: Steering fault light

Posted: Mon Feb 01, 2016 12:01 am
by pscan.eu
I am long overdue with the Epas protocol; in fact I am starting to feel guilty as it is a broken promise. I am pretty sure that it will be possible to make amends by releasing the software for it by the end of this week.

Re: Steering fault light

Posted: Tue Feb 02, 2016 5:15 pm
by Rob Bell
Nice one Philip - thanks!

BTW, has anyone requested access to the Stepspeed gearbox ECU? Unfortunately, I don't have access to one of these cars myself - but it is probably one of the last ECUs on the car with no accessibility other than through Testbook (other than the conundrum that is the Pektron SCU).

Re: Steering fault light

Posted: Sat Feb 06, 2016 12:43 pm
by pscan.eu
The EPAS protocol is done, I am just struggling to test it on an actual car. I could go over to Rob's place but that will cost me at least 2 hours which I just don't have this weekend.

Re: Steering fault light

Posted: Mon Feb 08, 2016 9:05 am
by Rob Bell
I didn't get home until after 10 on Friday! But should be back at a reasonable time one evening this week Philip, if you wanted to pop round on your way back from work?

Re: Steering fault light

Posted: Sun Feb 21, 2016 2:50 pm
by pscan.eu
I managed to test the EPAS protocol and it seems to work well.

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I did the thing of revving the engine for 30 seconds to make the warning light come on.
Interestingly erasing the code would not make it go away, I had to actually drive the car to make it go away. I tried with the real T4 and it was the same with that so I don't think that there is anything I can do about that.

Re: Steering fault light

Posted: Sun Feb 21, 2016 5:06 pm
by talkingcars
TBH Philip, the fault is still there until you drive the car.
Pleased you are making progress on this.

Re: Steering fault light

Posted: Mon Feb 22, 2016 1:18 pm
by Rob Bell
It's interesting that the EPAS fault light and the diagnostic system are separate!

What is the difference between "Main torque" and "Sub torque"? I presume that this is giving us data on the torque sensor positions (clockwise versus counter clockwise positions). If in the straight ahead position, I'd imagine that they'd both be equal values?

Re: Steering fault light

Posted: Mon Feb 22, 2016 6:06 pm
by pscan.eu
If you have a pscan.eu unit you can upgrade the software now and try it out.

Re: Steering fault light

Posted: Mon Feb 22, 2016 10:16 pm
by talkingcars
pscan.eu wrote:If you have a pscan.eu unit you can upgrade the software now and try it out.
Thanks, will try it at the next opportunity.

Re: Steering fault light

Posted: Tue Feb 23, 2016 2:17 pm
by Rob Bell
Will do! :)