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EPAS assist % readings on pscan 2 months 2 weeks ago #196267

Once again the most excellent pscan has been at work on the 2001 MGF 1.6i

My steering wheel has always kicked to the left on startup and switch off and I have suspected the torque sensor adjustment was out.
I checked with the pscan and could see a small amperage when the wheel was straight ahead ( sorry I didnt note it down)
after following the adjustment guide with from ultimateMG using a multimeter to get the potentiometer output as low as possible with the steering wheel straight, it was another test with the pscan, then out for a road test with my wife reading the figures while I drove (0.0A when straight ahead so very happy)

One thing I noticed was that the assist percentage was still up to 40% at 50MPH when cornering, the same as i can get when Im sitting still, this makes me question if the EPAS is speed sensitive.
The Pscan shows a speed when watching the live EPAS ECU data - so its getting speed input

I also get a P0500 fault code although the speedo works.

please can someone explain what is going on.
thank you.

Am I reading this data incorrectly?

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EPAS assist % readings on pscan 2 months 2 weeks ago #196301

Yeah the EPAS should be speed sensitive, I wonder if and / or how you could adjust this using a Pscan
"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"

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EPAS assist % readings on pscan 2 months 1 week ago #196331

I wasnt thinking I could adjust the settings as i guess its preset in the ECU, was more trying to understand if the EPAS was actually speed sensitive.
I may have just baffled myself with the data as the car drives nicely and the steering is good.
 

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EPAS assist % readings on pscan 2 months 1 week ago #196332

I don't think that EPAS has any way to adjust anything in software.  pscan basically offers the same features that the factory T4 has.

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EPAS assist % readings on pscan 2 months 1 week ago #196365

.........One thing I noticed was that the assist percentage was still up to 40% at 50MPH when cornering, the same as i can get when Im sitting still, this makes me question if the EPAS is speed sensitive.
The Pscan shows a speed when watching the live EPAS ECU data - so its getting speed input

I also get a P0500 fault code although the speedo works........
 

The EPAS should switch off at about 30mph so maybe it is getting a bad signal.
Try running the car for 30 seconds at over 2500rpm - the EPAS should switch off and the warning come up on the dash.

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The following user(s) said Thank You: Kiwi2001MGF

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EPAS assist % readings on pscan 2 months 1 week ago #196366

Great thank you, that's confirmed a few things.

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The following user(s) said Thank You: talkingcars

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